The widget was developed by qwertyoruiop as an update to the UISettings tweak released for iOS 4 which used the multitasking pane.
UISettings lets you quickly Respring or toggle Wi-Fi, Airplane Mode, Bluetooth, Brightness, etc.

How to get it ( iOS 5 ONLY ):
1. Jailbreak iOS5b1
2. Load Cydia and add this repo: http://qwertyoriop.com/beta. It will probably time-out, so continue to refresh it and eventually it will work.

3. Install UISettings
4. That’s it
NOTE: most people are complaining that this tweak won’t work but you’ll have to tap and hold your selection ( i.e ‘respring’ ) for like one second and then release.
Thanks qwertyoriop