Actually, this method should root just about any Motorola phone running Gingerbread. So not only will it work on the DROID3, DROID2, DROIDX2, and DROIDX, but it should also work on the DROID Pro and D2 Global when they receive an update – hopefully the DROID Bionic too. Download: MotorolaOneClickRoot.zip
1. Make sure you have Motorola drivers installed
2. Download the MotorolaOneClickRoot.zip file from above and unzip it to your Windows PC.
3. On your phone go into Settings>Applications>Development and check the box for USB Debugging.
4. Plug phone into your computer and select “Charge Only” mode.
5. Navigate to MotorolaOneClickRoot folder and run MotorolaOneClickRoot.exe.
6. Follow the instructions in the command window.
7. Your phone will complete 3 steps, rebooting along the way. When it finishes, you will be rooted.
Here is another guide in case you’re interested: http://www.psouza4.com/Bionic/