Transferred from: http://blog.csdn.net/zengyangtech/article/details/7019439
Android PDF Reader http://sourceforge.net/projects/andpdf/files/
Personal Bookkeeping tool Onmymeans Http://sourceforge.net/projects/onmymeans/develop
Android Battery Monitor Android Battery Dog http://sourceforge.net/projects/andbatdog/
RSS reader Software Android RSS http://code.google.com/p/android-rss/
Android PDF Reader Droidreader http://code.google.com/p/droidreader/
Android Scripting Environment http://code.google.com/p/android-scripting/
Android mini game Android Shapes http://sourceforge.net/projects/shapes/
Android JSON RPC http://code.google.com/p/android-json-rpc/
Android VNC http://code.google.com/p/android-vnc/
Meizu M8 Android transplant M8 Android http://code.google.com/p/m8-android-kernel/
Android Games Amazed Http://code.google.com/p/apps-for-android/
Android's social network HelloWorld goes mobile http://sourceforge.net/projects/helloworldgm/
Mobile Phone Chat program Android jchat Http://code.google.com/p/jchat4android/
Android GPS track record Mytracks http://code.google.com/p/mytracks/
Android chess game Honzovy achy http://sourceforge.net/projects/honzovysachy/
Android travel history software Andtriplog http://sourceforge.net/projects/andtriplog/
Music player Ambient http://sourceforge.net/projects/ambientmp/
Android mail client K9mail http://code.google.com/p/k9mail/
Multi-platform Application development Library Quickconnect http://sourceforge.net/projects/quickconnect/
Gphone Mobile Air Combat game http://code.google.com/p/wireless-apps/
Android photo Small software Panoramio Http://code.google.com/p/apps-for-android/
I-jetty http://code.google.com/p/i-jetty/
Android Mini Game Divideandconquer Http://code.google.com/p/apps-for-android/
Android Global Time Androidglobaltime Http://code.google.com/p/apps-for-android/
Android 2D game engine Android Angle http://code.google.com/p/angle/
Android Ruby http://code.google.com/p/android-ruby/
android-n810 http://sourceforge.net/projects/android-n810/
Android SMS App Ecclesia Http://sourceforge.net/projects/ecclesia
Jxta client peerdroid on Android platform Http://code.google.com/p/peerdroid/
Android game engine Libgdx http://code.google.com/p/libgdx/
Android photo Small software photostream Http://code.google.com/p/apps-for-android/
Alien3d logo Android 3D game engine alien3d http://code.google.com/p/alien3d/
Winamp Remote Android Server http://sourceforge.net/projects/winampdroid
Android's Facebook client Andrico http://code.google.com/p/andrico/
Android Applications Manager http://sourceforge.net/projects/aam/
Java 3D Graphics engine Catcake http://code.google.com/p/catcake/
android-gcc-objc2-0 http://code.google.com/p/android-gcc-objc2-0/
Nine Gongge Sudoku game Opensudoku Http://code.google.com/p/opensudoku-android/
Android ringtone Extension tool ringsextended Http://code.google.com/p/apps-for-android/
Javaeye Android Client http://code.google.com/p/javaeye-android-client/
Remotedroid Http://code.google.com/p/remotedroid/
Android Mini Game Clickin2dabeat Http://code.google.com/p/apps-for-android/
Chinese Medicine Doctor Assistant Information System Zz-doctor http://code.google.com/p/zz-doctor/
Facebook Connect for Android Http://code.google.com/p/fbconnect-android/
Android Smspopup http://code.google.com/p/android-smspopup/
Freetts-android Http://sourceforge.net/projects/freettsandroidi
foursquare.com Client Foursquar http://code.google.com/p/foursquared/
Barcode Scanner Android PC_BCR http://code.google.com/p/android-pcbcr/
Turn: Some of the better open source code projects for Android