the new nexus 7 isn't even tegra, and there are no optimizations needed. any game that claims to be tegra3 optimized, will run better on the new nexus 7. since the hardware in the new nexus 7 is more along the lines of an open standard, there will not need to be any special games to showcase it. the whole 'showcase' thing is just a gimmick one trick pony nvidia likes to do to hype its products by creating games that are designed to run well only on their proprietary soft/hardware.
I thought the new hardware. Open gl n such, that would open up a new world for developers too make new games not just the old ones look better because of pixels?