Windows Phone 7 - good early learning source?

Question

I'm coding some ealry windows Phone 7 apps, and running into some issues.

What are some good resources for learning the platform? Books, online, etc.

Answer 1

The Windows Phone Development topic on MSDN provides an overview of the platform, code samples, a programming guide, the class library reference, etc.

The Windows Phone 7 forum on MSDN and the Windows Phone 7 tag on Stack Overflow are useful resources when running into specific issues.

I've also heard that the Developer Training Kit on Channel 9 has some good tutorials.

Answer 2

A good set of starting resources has been compiled here for reference.

New Developer, Where do I begin?