Tom's Hardware's 40 Top Free Android Utilities
We’re kicking off this round-up with what might be the most important app there is for your Android-based device. As its name suggests, ROM Manager lets you save and restore your current ROM. But this app also allows you to restart in Recovery mode, install a ROM from the SD card, and partition the card. It's simply a must for anyone who enjoys playing around under the hood of Google's operating system.
What we like: Easy ROM switching, and the fact that you can restore a device’s original ROM.