The Young People's contenders are:
Kathi Appelt, The True Blue Scouts of Sugar Man Swamp
Cynthia Kadohata, The Thing About Luck
Tom McNeal, Far Far Away
Meg Rosoff, Picture Me Gone
Gene Luen Yang, Boxers & Saints
As of yet, the only one I've read is Far Far Away, which I LOVED. You?
See the full longlist here, and the whole shebang—including all of the other categories—here.
ETA: Oh, and the NBA has offered up free ebooks with excerpts from all of 'em!