TechGreatest
RePower Lets You Switch Off, Reboot & Respring From The Power Down Screen
After installing it, you get a reboot button, a respring button and an uptime readout for your jailbroken device. Basically what it does after you install it is that it empowers you to switch off, reboot and respring the device directly from the power down screen.
Video from our friends over iDB:
You can download RePower and then directly head to the Settings to configure the preferences. There are not many preferences to configure, but you need to switch the toggle on so that you can double-tap to perform the respring and reboot functions through the power down screen.
You can download RePower from the BigBoss repository of the Cydia Store. Let us know if you give it a try and feel free to leave comments.