Silverlight vs Flash vs HTML5, should I care?

Question

I have read a range of articles on advantages/disadvantages of Microsoft Silverlight framework in comparisson to Flash.

Fact that there were two version of Silverli

Answer 1

Flex/Flash and SilverL. now are very similar... using webservice for the clientt/server comunication you can work well with both.

Sure, for .NET developer with Visual Studio to use SilverL. is much more FAST and you need C# only.

But, Flash is more available on PCs, also for mobile devices... you could think for Flash if you need portability.