While I'm on the subject of Windows Mobile, you ought to check out this video of what's to come. Windows codenamed "Neo" is Microsofts new "carousel" OS that changes the way you interact with your mobile device.
As discussed in an article at WMExperts, Microsoft recently applied for a patent on the interface. The new interface lets you think "what do I want to do right now" instead of "what do I want to do right now, what application do I need to open to do it, and how to I interact with that particular application."
Very cool! Right now it's available on the T-Mobile Shadow.