I just wanted to put a quick post up to keep everyone grounded in facts here not rumors. Brandon Watson sent out the above tweet just to let everyone know that in fact when Windows Phone 8 comes out all of the Windows Phone 7 apps will still work.
Just for background purposes it was in responds to this tweet:
WP8 os isnt compatible with wp7 on app level (u need to rewrite all apps). Thats another os core with metro ui…
So who is Brandon?
I am responsible for apps/developers on Windows Phone…how can we make your dev idea come to life? (email: [email protected])
Yeah, he is that guy, works for Microsoft so I am going to trust him over some rumors being spread. Hope this helps put some minds at ease out there.