The OpenGL ES driver included in 5.0.2G doesn't support OpenGL ES 1.1 (which is supported by standard G1 firmwares). Apps that attempt to use 1.1 functions like glBindBuffer produce errors on logcat: E/GLLogger( 241): called unimplemented OpenGL ES API

I tried copying these files from a regular T-Mobile G1 firmware (TMI RC9): /system/lib/libGLES_CM.so /system/lib/libhgl.so (replacing the existing one)

That appeared to work, but I only tested two 3D apps.

This is fixed in ADP1.5Hr3. Thanks.