So I have decided to enter the world of MonoTouch. If you want to know a bit more about it check it out here www.monotouch.net . Its pretty logical for a .NET developer to try to use his main toolkit to develop apps for the iphone. Its early days and the toolset is still developing but its all fun and I am quite committed to staying in this space for a while.
Some interesting resources for the newbie:
www.monotouch.net (Of course)
www.monotouch.info (Lots of interesting videos and tutorials)
gunnerthemad.wordpress.com (nice little introduction)
http://lists.ximian.com/mailman/listinfo/monotouch (To join the mailing list)
Hope that helps