Yeah, he was messing around with an "unknown" phone, which is rumored to have been the Nexus S.
I think GB will be out before year's end. He may have mentioned it, but I doubt it'll get pushed over to early next year. The season to buy is the Holidays so it makes sense to release a phone in the December 10-20 timeframe. Of course, the N1 gets it first and we'll have ports to other devices. Wonder when the DX gets the official one.