Evolution of the Snapdragon? Moto doesn't use Qualcomm processors. They use TI. Its probably a 45nm dual core TI A9 chip.... OMAP4 platform. Tegra2 is a whole different platform, Nvidia's also using a custom A9 chip for it, but the GPU is significantly faster...
Nowhere in the article you referenced did I see anything mentioning Tegra2. Its probably OMAP4... but if that's the case, its going to blow what we are seeing right now in smartphones out of the water anyway. 5x better graphics than what's in the iPhone4, with a processor that's about 4x as fast.