Eg: "Are .NET programmers going extinct?" "Are .NET developers the next buggy whip makers?" http://radar.oreilly.com/2011/06/devwir-net-java-html5.html
There are rumors both ways about whether existing WP7 devices will get WP8:
http://wmpoweruser.com/rumor-windows-phone-8-being-tested-on...
For good or bad, MS is being tightlipped about a lot of things these days, and taking speculation for granted hits the credibility of the article writers.