The last weeks there were some rumors that Silverlight 5 might just be the last version of the technology. Combine this with the fact that Adobe is killing any further development of it's flash mobile plugin and you can only conclude that both Microsoft and Adobe think that the future of web development does not lie in a proprietary plugin technology, but in HTML5.
But what about the Windows Phone than you could ask?
It’s all based on Silverlight so it will not disappear right? Even there I think we’ll see Silverlight replaced by a new WinRT alternative(just by guessing that Windows Phone 8 will have the same version number as Windows 8 ).
Should you care as a WPF/Silverlight developer?
Should you care as a Mobile developer?
Although a native experience remains the ideal, I don’t see a world where every application will be written for each and every mobile platform. So I think the future of mobile is HTML5 and mobile web applications. For now, there are a few restrictions, but if you know about the device APIs you should realize those few limitations are going away in the near future.
I know how I’ll spend my time the upcoming months…