Droid Bionic and Motorola Razr XT910 users on Jellybean can now root there phones. The root tool is called MotoShare 2.
The guy to thank is djrbliss again, you need a 32bit Linux machine to run the exploit (a live cd will also work). It is and will not be possible to run the exploit on a windows machine. The instructions are pretty easy if you follow what’s written. We are not going to copy paste the instructions on here as we find it unethical to do so. Anyways, instructions can be found here (yes you need to register).