If you don't keep an obsessive eye on video game development, you might not be aware of Unity. It's a 3D game engine that makes it easy to develop games for multiple platforms and multiple rendering engines, including Direct3D, OpenGL, and (on Android and iOS) OpenGL ES. It's not the most powerful or flexible thing around, but a lot of developers rely on the tool. Now they've got an easy way to estimate game performance on different Android hardware, via the Basemark X benchmark from Rightware.
Basemark X is also pretty impressive as a demonstration of the graphical power of Unity 4.