Tim Anderson’s ITWriting

This announcement concerning advertising on Xbox Live together with these tweets from Microsoft VP Scott Guthrie add up to one thing: Silverlight 3 will run on Xbox 360.

Another platform (along with Apple’s iPhone) where Adobe Flash will struggle to find a place, I’d guess.

Adobe CEO commented during yesterday’s earnings call:

We are also equally committed to bringing the Flash Player to the iPhone, so now we do have a Flash Player 10 version for smartphones. We continue to work with Apple. We need more APIs and cooperation to bring the capabilities of Flash to the iPhone and we think it’s in both of our best interests to make sure that 85% of the top 100 websites that use Flash, that that experience is available to the Apple customers.

The real question is not whether Adobe is committed to this, but whether Apple will allow it. I think the stake are high for Adobe, which is why I have such keen interest. The longer the iPhone remains Flash-free, the more those “85% of the top 100 websites” will question their use of Flash and wonder if they should try to migrate towards more universal HTML and JavaScript technology. On the other hand, if Adobe gets its stuff on iPhone it will give it a further advantage over rival plug-ins like Microsoft’s Silverlight.

I mean, if you build your entire cloud platform around the Flash client, what do you do if the key mobile device out there refuses to support it?

Transcript from Seeking Alpha.

I’ve just downloaded and installed the Visual Studio 2010 beta 1 release. I’ve not explored much yet – and it is rather slow in a virtual machine – but it does now seem to have the new editor and other pieces built with Windows Presentation Foundation.

A landmark for both WPF and Visual Studio.

I also noticed that the Silverlight visual designer now works as you would expect, though I had to download the developer runtime and SDK separately:

I’d welcome comments from anyone using the beta.

The New York Times has released Version 2 of its Times Reader, for seamless online/offline viewing of its content. It’s interesting from a media perspective, but hardly a breakthrough, since it is not new. What’s more interesting to me is that the Times switched from a hybrid approach using WPF (Windows Presentation Framework) on Windows and Silverlight on the Mac, to Adobe AIR. Switches like this are bad PR for Microsoft, since it gives the impression that the developers were sufficiently unhappy with WPF/Silverlight, or so strongly attracted to AIR, that they were willing to throw away much of their previous development effort.

I’ve been tracking Times Reader for some years. It was presented at Microsoft Mix07 and I wrote up a panel discussion on the subject:

I asked about the cross-platform issue. According to Bodkin a Silverlight implementation is on the way, which includes most of the features in the full version, in “a matter of months.”

That was optimistic; but a Silverlight version was delivered and I used it successfully on the Mac; though it lacked some features of the WPF edition. It also attracted hostility from Mac users who are Microsoft-averse, as I reported here, and apparently ran into further problems because of incompatibility with Safari 4.

I tried the new AIR edition and it seems pretty good, though my impression is that it is not quite as smooth as the old WPF version. I might be wrong, since I could not install both on the same machine. The new version does add video support. Here’s the old one:

and this is the new effort:

I think this is a fascinating case study which demonstrates a number of things.

First, that cross-platform support is not an optional feature any more (if it ever was) for this kind of public application. Let’s assume here that the WPF version was just fine for Windows users, but was not viable long-term for lack of cross-platform support. It was inevitable that the Times would eventually either use Silverlight on both Windows and Mac, or abandon both WPF and Silverlight for a cross-platform alternative.

Second, that Silverlight is not yet mature enough for this kind of application. Although the Times developers were able to deliver a Silverlight version, it required a bit of hackery for offline support (embedded Safari on the Mac) and apparently ran into version problems when Apple upgraded Safari. Silverlight is also known to be poor for text rendering – a Google search for “blurry text Silverlight” brings back plenty of hits. Adobe also made a big improvement to text handling in Flash player 10, with the new flash.text.engine.

Third, that offline support really is a big deal. Would Silverlight 3.0 have been good enough? Possibly, though I haven’t seen any suggestion that Silverlight 3.0 offline apps will be able to run in the background while showing just an icon in the notification area, to support continuous synchronization.

It is possibel that these problems may be fixed in Silverlight 4.0. That’s a long time to wait though, when you need your application out now (and your industry is in crisis).

It would be silly to extrapolate this case study into a broader statement about the superiority of Flash over Silverlight. For the specific needs of the New York Times though, it is easy to see why Adobe AIR appeals.

Miguel de Icaza has announced the first preview release of Moonlight 2.0. This is the one that counts, in that it brings the .NET runtime to Silverlight applets running on Linux:

This is the ECMA VM running inside the browser and powering C# and any other CIL-compatible languages like Ruby, Python, Boo and others. You can use Moonlight/Silverlight as a GUI (this is what most folks do) or you can use it as the engine to power your Python/Ruby scripting in the browser.

The download page has plenty of health warnings:

Keep in mind this preview release is not feature complete. Most importantly not all security features are present or fully enabled in this release. Even existing security features have, at this stage, received only minimal testing and no security audit of the source code (mono or moonlight) has yet been done.

Undeterred, I installed it into FireFox 3.0, running on Ubuntu Linux. The download is under 9 MB. My first effort was unsuccessful; the plug-in appeared to load OK, but no Silverlight apps displayed. My second attempt in a VM worked. Naturally I went along to my Silverlight database example which as it happens runs on Mono. Here it is:

This is what it should look like (Silverlight on Windows):

Well, it is only an alpha preview, and it shows. On the plus side, the data is displayed, the search works, and the buttons operate. It is a considerable achievement. But don’t plan to move your users onto Moonlight applications just yet.

On 21st April Adobe’s Ben Forta told a user group that Flex Builder 3 for Linux is on hold, citing lack of requisition, which is corp-speak for lack of demand.

Note that the Flex SDK does run on Linux. It is just the official IDE that is in question.

Linux is a free operating system, and this could be evidence that users of a free OS are less likely to purchase software than users of a paid-for OS. Or it could simply reflect poor market share for Linux outside servers. Even if it has just hit 1%, as hitslink reports, it is still barely more than 10% of the Mac share and a little over 1% of the Windows share. Some of those Linux machines will also be netbooks – secondary systems for users with a Windows or Mac for serious work such as design and development.

Nevertheless, I suspect there is more to it than that. I suspect Adobe would like to support Linux, because it wants to portray Flex as an open platform – the SDK is open source, though managed by Adobe, but the runtime engine is closed-source and proprietary. This may be another sign of Adobe’s financial stress. The company reported reduced quarter-on-quarter revenue for the the 3 months ending February 2009, and has been cutting staff numbers.

The backdrop to this, in contrast, is that Adobe is having great success with its Flash platform. There is no sign of Microsoft’s Silverlight denting the popularity of Flash on web sites, either for applets or media streaming.

The recession then? Partly; but this is also about Adobe’s business model. Adobe does not break out its figures in detail as far as I know: the last financial statement merely shows that its revenue is nearly 95% from product sales, the rest being services and support. Still, I’d guess that the largest component of its product sales must be Creative Suite. In other words, its business model is based on selling tools and giving away runtimes. When 47 million people watch Susan Boyle on YouTube, Adobe doesn’t make a penny, even though they are almost all using Flash to do so.

The tools market is a difficult one for various reasons, including competition from free products and the fact that the number of people needing development or design tools is always much smaller than the number needing runtimes. In a recession, deferring a tools upgrade is a obvious way for businesses to save money. Remaining primarily a tools company is a limit to Adobe’s growth and ultimately its profitability.

This is of concern to all Flash platform users. Adobe has proved to date a good steward of the technology. Some of us would like the balance of proprietary vs open tilted further towards open, but I doubt many would welcome a takeover or merger such as we have seen with Sun and Oracle (and there are a few parallels there).

There would also be many cries of “foul” if Adobe sought to further monetize Flash by starting to sell, say, a premium version of the Flash runtime.

Adobe is still a profitable company, and maybe when the economy recovers all this stress will be forgotten. Still, I’d guess that long-term Adobe will want to shift away from its dependency on sales of tools; and how and what it does to achieve that will have a big influence on the future of its RIA (Rich Internet Application) platform.

I ran into a small but thought-provoking problem in my sample Silverlight database application. I wanted to call a web service, and only call a second web service if the first was successful. The problem is that all web service calls are asynchronous, so you cannot do this with a simple if statement. The quick fix I used was to store my intended operation in a PendingOperation variable. When the first web service completes, it checks for a pending operation. If the first call succeeds and finds a pending operation, it calls the second web service to complete it.

My workaround is OK, but it got me thinking about the best way of doing this. What if you had a sequence of web services to call, and wanted to check for the success of each one before proceeding to the next? I discussed this on the Silverlight forums and was directed to this article by Daniel Vaughan which describes how to do this in a background thread. I haven’t tried his code yet; but it strikes me that this could be useful; I’d like to see Microsoft build something like it into the core framework. Since all the calls take place on a background thread, there is no danger of locking up the user interface.

If RIA programming is as important as some suggest we will have to get used to this kind of problem.

I’ve been amusing myself creating a simple online database application using Silverlight. I had this mostly working a while back, but needed to finish off some pieces in order to get it fully functional.

This is created using Silverlight 2.0 and demonstrates the following:

• A bound DataGrid (as you can see, work is still needed to get the dates formatted sensibly).
• Integration with ASP.NET authentication. You have to log in to see the data, and you have to log in with admin rights to be able to update it.
• Create,Retrieve,Update,Delete using ASP.NET web services.
• Image upload using Silverlight and an ASP.NET handler.
• Filter a DataGrid (idea taken from here).
• Written in Visual Studio 2008, and hosted on this site, which runs Debian Linux, hence Mono and MySQL. Would you have known if I had not told you?

You can try it here. I’ll post the code eventually, but it will be a couple of months as it links in with another article.

MVP Ken Cox notes in a comment to Jesse Liberty’s blog:

Hundreds of us are scouring the Internet for a realistic (but manageable and not over-engineered) sample of manipulating data (CRUD operations) in a Silverlight 2 application. There are promising pieces of the puzzle scattered all over the place. Unfortunately, after investing time in a sample, we discover it lacks a key element – like actually saving changed data back to the database.

I can safely say that mine is not over-engineered, and that yes, it does write data.

I sat down last night to watch a programme on ITV’s catch-up service, using the Silverlight-based ITV Player. It was watchable, but not too good. Now and again the stream would pause for buffering, and I saw the Silverlight busy icon for a while. Quality is also an issue. Sometimes it is great; sometimes it is horribly pixelated.

I took a look at the ITV forums. It seems to be a common problem. The Best of ITV section is dominated by complaints. Some are from an aggrieved minority running Linux or PowerPC Macs; but there are plenty of others. My experience is relatively good; other issues include broadcasts that only play the ads; or codec issues; or streams failing completely half way through a programme. Here’s a sample:

Believe me guys even if you had Windows OS the player still wouldn’t work its completely rubbish; 6 times i’ve tried to watch Britains Got Talent and it either vanishes, or skips etc.
Rubbish, rubbish, rubbish! BBC iPlayer is excellent compared to this, i’m quite disappointed!

Readers of this blog will know that I have nothing against Silverlight, though my interest is more in the application development side than video streaming. Still, the impact of one on the other should not be discounted. You can guess what the pundits in the ITV forum are calling for. It’s Adobe Flash, because they have seen it working well for the BBC and elsewhere.

Now transition to the development team as they put forward the question of whether to use Flash or Silverlight for their upcoming RIA (Rich Internet Application) project. If the exec responsible struggled to watch ITV player the night before, thanks as far as she can tell to the Silverlight plug-in, that becomes a factor in the outcome.

I understand why people blame Silverlight for these problems; but I realise that this may be wrong, cross-platform issues aside. Maybe ITV has inadequate servers; or there is some other technical issue, and Silverlight is innocent.

If you know the answer to this, please let me know or comment below.

Microsoft must realise, though, that this is the most visible use of Silverlight for many UK folk. Some may also remember how BBC iPlayer transformed its reputation when it moved from using primarily Microsoft technology – though not Silverlight, and made worse by poor peer-to-peer client software – to Adobe’s Flash platform. I suggest that Redmond’s finest give it some attention; though who knows, it may be too late.

I loved this piece by Robin Bloor on The PC, The Cloud, RIA and the future. My favourite line:

Nowadays very few Mac/PC users have any idea where any program is executing.

And why should they? Users want stuff to just work, after all. Bloor says more clearly than I have managed why RIA is the future of client computing. He emphasises the cost savings of multi-tenancy, and the importance of offline capability; he says the PC will become a caching device. He thinks Google Chrome is significant. So do I. He makes an interesting point about piracy:

All apps will gradually move to RIA as a matter of vendor self interest. (They’d be mad not to, it prevents theft entirely.)

Bloor has said some of this before, of course, and been only half-right. In 1997 he made his remark that

Java is the epicenter of a software earthquake, and the shockwaves are already shaking the foundations of the software industry.

predicting that Java browser-hosted or thin clients would dominate computing; he was wrong about Java’s impact, though perhaps he could have been right if Sun had evolved the Java client runtime to be more like Adobe Flash or Microsoft Silverlight, prior to its recent hurried efforts with JavaFX. I also suspect that Microsoft and Windows have prospered more than Bloor expected in the intervening 12 years. These two things may be connected.

I think Bloor is more than half-right this time round, and that the RIA model with offline capability will grow in importance, making Flash vs Silverlight vs AJAX a key battleground.