I just happened to come across a new book on Amazon available for pre-order: Lego Mindstorms NXT 2.0 for Teens by Jerry Lee Ford. I didn't recognize the author... does anyone know something about this book? I'm couldn't tell from the description how the book applies specifically to teenagers; it seems more like a beginner's programming guide.
There also appears to be a new book coming out by No Starch: The Art of NXT-G Programming by Griffin Terry. I didn't recognize this author either, but the title and description sound similar to Jim's NXT-G programming guide.