HTML5 beats

HTML5 beats Adobe Flex, Microsoft Silverlight and Oracle JavaFX. Here u go!
http://bexhuff.com/2009/06/html-5-versus-flash-flex

Thought works to back up:

• Plug in Hell: Except HTML 5, plug in is required to install in the customer machine for Adobe Flex, Microsoft Silverlight, and Oracle JavaFX by design. In the current IT, there are lot of focus towards app security. But, plug-in design leaks the power of security and provides the high probability of hacking/security break operation.

• Next Gen Web: As MS web developer, Silverlight is not the only option to build the next gen web applications. Better choice would be ASP.NET MVC, WCF and Entity framework for UI, Service and DB app layers. Still, HTML5 UI capability exceeds other technologies.

• Browser support: Though HTML5 spec is evolving, all browsers will support HTML 5 completely by 2010 end. Major browsers like Firefox 3, Internet Explorer 8, Chrome 2 and Safari 4 are already supporting.

• Performance: In terms of performance, built-in browser support execution faster than the custom plug in app.

Google wave is built on HTML5 and more list to go! CTOs may have more tech justifications to switch.