note - compile android 2.1

1. BatteryService patch 

http://labs.embinux.org/git/cgit.cgi/android-omap3/repo/android/platform/frameworks/base/commit/?h=beagle-eclair

2. libwebcore.a problem

cd external/webkit

git cherry-pick 18342a41ab72e2c21931afaaab6f1b9bdbedb9fa

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