Atm i just target ES 2.0 which is available since OS 2.0 but we use the NDK and have to use 2.3 or 2.1 this one i have to recheck.
Nope is just build it for armeabi-v7a in the future we can also build for other platforms (its just a configuration thing).
Be careful not to mix OpenGL ES 1.x API calls with OpenGL ES 2.0 methods! The two APIs are not interchangeable and trying to use them together only results in frustration and sadness.