The Uprising by Lisa M Strasse
Here is the bit from Goodreads and a pic. It is being released on August 6th, 2013! Yipee!
In order to bring down the UNA, they must first gain control of the wheel. If the mission succeeds, the wheel will become a base of revolution. But between betrayals, a new Monk leading a more organized army of Drones, and the discovery of a previously unknown contingent, Alenna, Liam, and their allies might be in over their heads. One thing Alenna knows for sure: There will be a reckoning. And not everyone she loves will make it out alive.