I ran across this project recently while searching over the open-source MMO code bases.
Its a great concept and one that is much needed for the community!
I've been around the gaming community since about 1995, so I've had alot of fun with RPGs and quest development. In my early teens, I was a Wiz for several Muds (Ancient Anguish, couple of Tolkien muds) & Quest mod for an online mud called The Eternal City. Since that early age, I've moved onto J2EE work (Telecom related stuff), but still keep the love of gaming alive.
I"ve been dabbling in C# for a while, have an XNA account through MSDN Alliance, and have been playing around with it. Its interesting in the similarities to what I do professionally, as I was suprised as to how closely related C# and Java are. Being a highly open-source Java background has made this a really cool project to follow.
I'm looking forward to seeing the book, and will be floating around the forums from time to time. Hope to meet everyone.