When running using JNI debug mode: adb shell setprop debug.checkjni 1
All the calls to SimpleSoundEngine fail with an invalid JNI env. After tracking, I found that removing the line in method getMethodID (SimpleAudioEngineJni.cpp):
It runs fine on the phone because jnidebug is disabled by default and enabled on the simulator. Try the command I mentioned above to enable debug mode before running the application.