As many anxious people await the untethered iOS 5 jailbreak, here is something that could be of interest to you until the fully untethered jailbreak arrives – SemiTether.
SemiTether is the closest thing possible next to an actual untethered jailbreak. The guide below will teach you how to do this. Or you can watch the video above.
Have a jailbroken device. Guide for that can be found here.
Install SemiTether as demonstrated in the video below.
What this basically does is that it allows you to be able to turn your device back on after a full reboot and have access to all of your stock applications.