They always look to pretty before adding in all the ugly wiring, motors and such. Looking pretty sharp guys, even with all that other stuff.
We actually have a long history of doing stuff like this. The 1999 robot looked very similar but the arms were used to elevate the robot to drive on to the puck. We did a pair of high torque, high traction wheels on the '02 bot where we tipped the robot to engage them when lifting the goal. As someone mentioned, our '04 robot had two of these also. I've always liked the setup too. Very robust.