I don't want to steal the "ThMOEnder" from the team, but here's my understanding of their design...
The short arm is able to rotate (horizontally) on their elevator, much like their '05 tetra bot. This allows it to store within the envelope, as well as score from both the side and front of the robot. It looks to have a double pneumatic actuated grabber, where the top clamps down to grab a ringer, and the bottom swings downward to release the ringer. I can't tell if the arm pivots on those 4-bar links or not.
I like the design a lot! The ramps have some nifty guard rails on it, and I can only assume that they are planning on using the back wall to guilde the robots on the opposite side of the ramp. One of the subtle devices I spied are the wheel blocks on the angled side of the ramp. They look to be spring loaded, so that a robot can drive over them, but help to support the robot after the power is cut. Very nice! Can't wait to see some video.
BEN