If you want to learn about the fundamentals and how to start developing with Windows Embedded CE 6.0,then here is the free e-book from Microsoft.
Windows® Embedded CE 6.0 Fundamentals
Already in May 2008 Microsoft had released free Windows Embedded CE 6.0 material for MCTS exam.Windows Embedded CE 6.0 material for MCTS is also a good one to start with.And this is second from Microsoft.I think in near future you can expect more from Microsoft.
So Windows CE 6.0 developers enjoy reading these good books.
