Gaining new skills

I have decided to check some basic stuff about developing apps for mobile platforms. I have not decided yet upon the platform, the options are Iphone, Android or Windows Mobile.

Iphone seems already a crowded market with small chances to break trough. Developing the app is probably the easy part, while marketing is the tricky part. Also the approval process from Apple is a pain.
Since my professional orientation is to Sql Server and .NET, it would seem natural to go with Windows Mobile but it seems that right now WM is far behind. Even Microsoft CEO Steve Ballmer criticized Windows Mobile :). People are waiting for Windows Mobile 7 which has been pushed back to the last quarter of 2010.

At this point Android attracts me a lot. Google's Android market has still flaws but on the long term it seems to offer good perspectives.