It was rumored that Andy Rubin would announce Gingerbread at the D: Dive Into Mobile event today, but Google took care of that announcement for him today. Rubin didn't show up empty-handed, though, as he brought along a Motorola-made Android tablet prototype to show off to the audience. There's not a lot of solid evidence just yet, but we do know that it's powered by an NVIDIA processor, a "dual core 3D processor," video chat, and is running Honeycomb. The OS on the tablet appeared customized and sported a Gmail app that was similar to what's on the iPad. There's no word on the device's size, but the folks at Engadget think that it looked more like 10 inches than 7 inches.
No one is quite sure what exactly Rubin pulled out at the D conference, but considering that it's made by Motorola, it's entirely likely that it was the Stingray tablet that we heard about so long ago. We know that Moto is prepping both a 7-inch and a 10-inch tablet, so perhaps this device is the larger of the pair. Whatever it was, we likely won't see it hit retail for another couple of months, so we'll just have to drool over screenshots like the ones above and below in the mean time.
UPDATE: A video of the tablet in action has been posted at the All Things D site. Check it out here.