The very first line of the forum post on xda-developers says it best -- proceed at your own risk -- but if you've been kept up at night waiting for root to be gained on Verizon's recently-released Droid 2, it looks like your day has come. The process involves tethering up to your PC and transferring a couple binaries, but seems straightforward enough and should open the door to surcharge-free tethering and other apps that require root access. We've no doubt Motorola will be looking to patch this up with the next OTA push, of course, so update carefully from here on out.
*Verizon has acquired AOL, Engadget's parent company. However, Engadget maintains full editorial control, and Verizon will have to pry it from our cold, dead hands.