ROM Manager ($5.99)
If you have a rooted device, you owe it to yourself to look into ROM Manager. With the help of a great UI, it lets you easily apply nightly builds. It also makes switching ROMs a snap and you can even back up your ROMs.
Jack Wallen is an award-winning writer for TechRepublic and Linux.com. He’s an avid promoter of open source and the voice of The Android Expert. For more news about Jack Wallen, visit his website getjackd.net.