This is on Massdrop again. Use the same link as in the OP.
I got mine from the earlier drop, and I'm liking it so far. Very sturdy and has a great solid feel to it. Haha, it's almost as big as my 60% boards, though. I tried playing Diablo 3 with it, and that still made my arm hurt from holding down the left button with my thumb. But for other usage, it seems to be helpful for giving my arm a break from the usual mousing motions. I wish the scroll wheel wasn't so high up, but it's ok and it works well after you move your hand up there.