BlackBerry Development Fundamentals

It's a very easy read, and that's a good thing.  Wargo's background in teaching budding developers around the US shines through in the clear and concise way it tackles each topic. The content is relevant and appropriate for it's target audience and there are many asides that will interest more experienced developers.  Time and time again I found myself saying ah that's how that works (the MDS broken down in it's component parts, BlackBerry security, and how to compile Java apps for multiple devices to name just three).

Jason Hook
www.notesberry.org