That means her new novel is expected to be out in May 2011.... only a year away! *tears out hair*
Brief summary (taken from her blog):
Cut and Run, about a high school senior who, after her parents’ divorce, has taken up the practice of assuming a new identity in each of the four towns she’s lived in.
--I'm not sure what to think about it. I have some mild theories that are probably insanely wrong, but I do hope it is a small detour from her beloved formula; I absolutely can't wait to read it!
If you want, visit her post here to get more details :)