The person who guesses closest to the date when someone with a solid reputation proves they have received the product and that it does what is claimed the person making the guess will get 5 BTC from me.
Extra 1 Bitcoin bonus for the person who guesses closest to the actual power usage from the wall.
I'll go December 11, 2012 with 750w for power and if we get extra bonus BTC for predicting who is the first to get it gigavps as he seems to have the inside track on all the hardware coming out from the BFL boys, two times lucky so far third time a charm.