Power Widget

Power Widget offers some very nice and useful toggles.
With Power Widget you gain quick access to most of your important settings.

USB
Airplane
WiFi
Bluetooth (only 2.x)
Silent
Lock Pattern (<2.2)
Brightness Toggle
Brightness Slider (with auto for 2.x)
Sync (only 2.x)
Orientation
GPS
2G/3G
Stay awake
Always On
Screen Timeout
Wifi Lock