WinMo will be dead in a few years.
They had no centralized marketplace until October of this year - Nokia, BlackBerry, Android, and the iPhone had centralized marketplaces well before that. Microsoft has been slow to adopt, and stupid when it comes to mobile devices. Their shrinking is deserved.
Nokia will continue to shrink, leaving RIM, Apple and Google as the big 3 for mobile OSes. Android will be the only viable choice, as Apple and RIM have no real reason to support OSes on multiple devices outside of what they manufacturer.
And yes, Android is awesome. I've had one since July of this year. Its getting better and better all the time.
Back from the dead, I'm afraid.