Well... Phonegap is a strange beast.
I suggest you to work with phonegap 1.7 and compile your apk by yourself through eclipse.
I use this configuration because i found it the best way to test apps on my phone with a good compatibility with c2 code. What you see in your browser is almost what you get on the phone.
1.7.x is currently the best version for c2 projects.
Then, since 1.8 they made some changes. Accelerometer stopped working as intended and now, with 2.0 even audio has some problems.
Please note that playing audio on phonegap will impact heavily on FPS making your game choppy and barely playable.
The only reason to use phonegap is to test your project on a real device with 99% compatibility while waiting for something more performing like cocoonJS or directcanvas.
Personally, I'd never release an official app compiled with phonegap, the gap with native applications is embarassing.