These last weeks have not been good for Adobe. First there was the Harmony announcement, sidelining the Adobe/Mozilla Tamarin project and making Adobe’s ActionScript 3.0 look more proprietary. Now there is Chrome; and I’m inclined to agree with Vembu, that Google will try to move away from Flash dependency. If that is right, then neither Google, nor Microsoft, nor Apple wants to play the Flash game.
As for Silverlight, I see this more as a Microsoft platform solution, extending its reach beyond the Windows client. I doubt it will be much affected by Chrome, though Vembu is right in saying that the more capable the browser becomes, the less necessity there is for something like Silverlight.
What about Zoho itself? I would take it more seriously if it were not so desperately slow whenever I give it a try, in contrast to Google’s usually responsive servers. It may be better in the USA, or perhaps there is some other reason, but for me the performance just kills it.