Android has really grown quickly in the realm of mobile gaming, especially with the influx of Tegra 2 phones and tablets. Keeping that momentum going, Madfinger (creator of Samurai 2) is currently working a new game optimized for Tegra devices called SHADOWGUN. There will be two version of this game - one for Tegra 2 devices, and one that takes advantage of NVIDIA's next-gen Tegra 3 processor, the quad-core Kal-El.
Update: Now with video (thanks, Nick!).