Android internal

Boot

• android property system

• ACTION_BOOT_COMPLETED

  Broadcast Action: This is broadcast once, after the system has finished booting. It can be used to perform application-specific initialization, such as installing alarms. You must hold the RECEIVE_BOOT_COMPLETED permission in order to receive this broadcast.

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Debug

• adb over wifi, for already 'rooted' device, you can use WifiAdb.  
• Android UIDs and GIDs
• Super user permission
• Install Market on Android emulator 

Networking

• Get local IP address

System settings
  System settings are defined in:

• java files at packages/apps/Settings/src/com/android/settings
• xml files at packages/apps/Settings/res/layout

  System setting can be manipulated with the class Settings:

• base/core/java/android/provider/Settings.java.

System properties
  System properties are automatically generated by:

• core/Makefile
• tools/buildinfo.sh
• device specific system.prop

Benchmark

• 0xbench