Charlie Demerjian claims NVIDIA taped out Tegra 3. Take it with a grain of salt, but according to the author the third-gen Tegra is unlikely to be more successful than its predecessors:
Tegra 3, aka T30, looks to be every bit as successful as the last two, with dozens of design win announcements expected soon. Once the chip is available, currently slated for mid-2011, expect most of those to vanish quicker than an overclocked Kin. Of those 'wins' that don't get sent to the big pile of underperforming chips in the sky we expect one or two to actually be from companies you have heard of. No pay for play there. Mostly.
In the end, we can't see how Nvidia is going to make a dent in anything other than a few eardrums with this chip. The biggest wins to date for the prior two generations likely haven't hit the 100K unit sales mark, and that is for a product, the Zune HD, that was won on backroom deals. Even that was a flop, have you ever seen a Zune HD in the wild? How many hours worth of Apple sales is that?