There's just one problem. The card in Papermaster's hands looked quite a bit different:
Which, of course, raises the question: will we see a consumer dual-Tahiti card? I'd say that's fairly likely, given that AMD evidently has a PCB and a cooler ready, and Nvidia recently rolled out its GeForce GTX 690 with dual Kepler GPUs. AMD could always choose to restrict the dual-Tahiti solution to its professional lineup, but it may just as well unleash a Radeon HD 7970 X2 in the not-too-distant future. Keep your eyes peeled.