Unclear on this right now, but check out these folding Pocket Rigs that are showing up online. The unit folds up to about the size of a standard battery grip, and folds out to provide chest plate, and two 15mm rails for getting a follow focus mounted. They are showing up as GeniusXeme rigs and i'm wondering if these are just rebranded Edelkrone pocket rigs. These were a big hit just a few weeks ago at NAB2012 along with two new Follow Focus systems.
[Update] Edelkrone writes in and states that the rig below is a counterfeit and has not been authorized to manufacture or sell such rig. Obviously they will be contacting that company to have the product removed. You can find the original Pocket Rig from Edelkrone at https://Edelkrone.com.