Hey Guys,
A book about the X-Prize just came out. It's called INGENIOUS, by Jason Fagone.
I was actually given an advanced copy and just finished reading it right as it is coming out to the public. It's really good, following the people behind four of the teams that entered the X-Prize (especially Edison2)
You can read my review of it at:
Book Review: ingenious
It's available at all the main online booksellers and the author's site is at:
Ingenious the Book « Jason Fagone
I think anyone on this site would like it.