Some months ago I wrote about the 'Professional's Guide to .NET Micro Framework Application Development' from SJJ Micro Solutions, LLC. The authors are Sean Liming and John Malin. At the time, it was only available in electronic form which was a little frustrating for the set who likes to write in the margins so SJJ is announcing that the book is now available in paperback in full color. Check it out at: http://www.amazon.com/Professionals-Guide-Framework-Application-Development/dp/0984280197/ref=tmm_pap_title_0
There is additional Developer documentation on the NETMF Codeplex site which can be visited by clicking the link above.