Ironmind is updating their site. There is mention in each of the gripper descriptions of 1.5,2.5 and 3.5 grippers!. Active thread on the Gripboard now. No mention of a Skull decal option though. ;)
As much as I will try to resist, I'm sure they will be on the way to Norrin Manor as soon as they are available.
UPDATE: I ordered the 3.5 gripper, the Wade Gillingham DVD and a T-Shirt. Hey-Now! I'm a fucking grip zombie!