Jumped of a burning platform, and into a leaking liferaft with a hell of a challenge to get to land.

The question is can Windows phone get enough support to become a viable ecosystem to compete with iOS and Android - so far I have not seen anything that suggests it is happening.

I still think WP was the wrong direction from an architecture PoV.
iOS, Android, and if rumour is correct the successor to S40 all have a unix/linux core at heart. WP stands alone, and while it's prettier, and the codebase newer than Symbian I am not sure it will be any easier to code for and port apps across between ecosystems.

They should have stuck with linux and QT.