A picture of what appears to be an official Nvidia roadmap for the Tegra line of chips was leaked to Bright Side of News recently. The roadmap shows the next two successors in the Tegra line, including the Tegra 2 3D and the Tegra 3.
The Tegra 2 3D appears to be based on the ARM Dual Cortex-A9 Tegra 2, but with its clock speed increased 200MHz, up to 1.2GHz speed. This increase in speed is likely because of the increased performance needs for running a 3D display, which appears to be the main selling point of the Tegra 2 3D SoC (system-on-a-chip). The Tegra 2 3D is slated for production in this quarter.
The Tegra 3 SoC will have a quad-core processor running at 1.5GHz and is said to have 3x faster graphics than the Tegra 2. The Tegra 2 will also have a ULP (ultra low power) CPU Mode to help conserve battery life, comes with Blu-ray video support, and in the tablet form, can support up to a 1920 x 1200 display. Samples for the Tegra 3 were already supposed to be made in last quarter.
Image from Bright Side Of News