Seriously, it's not .NET platform developers target, not a phone or an operating system or a web platform. There is less that's unique to developing a .NET application that targets a particular piece of hardware than for other programming languages/frameworks.
As a WinForms/ASP.NET developer, I was able to begin developing a Windows Mobile 6 application after only a few minutes of tinkering with no prior experience.
This is just another example why .NET is by far the best development platform available.
