Android developer slow88Ix, at Rootz Wiki has released a utility that can root Motorola Droid 3 just in one click. So, folks who are ready to root their Droid 3 must follow the guide written below to do that.
Warning: Proceed at your own risk, as this process may brick your mobile device.
Note: Following method is also applicable to root Cliq, Cliq 2, Droid X, Droid X2, Droid Pro, and Droid 2 Global.
How to Root Motorola Droid 3 on Windows/Mac
Download Droid 3 Easy Root Script and extract it
On your Droid 3, tap menu and navigate to “Settings” > “Applications” > “Development” and enable “USB debugging”
Connect your phone to computer and select “Charge Only” mode
Go to “MotorolaOneClickRoot_psouza4” folder which is extracted in step 2, and run “MotorolaOneClickRoot.exe”
Follow the on screen instructions carefully
Done! Your Motorola Droid 3 is rooted now.