Developers have packaged the lengthy and cumbersome HTC Thunderbolt root process into an easy to use application that runs from your computer. You get the same root, using the same methods, without the work and potential for user error. There are a few caveats though -- you'll need to be using Windows, have a Tbolt with a firmware version lower than version 1.12.605.9, and there's the potential for a bug that will force you to head to IRC for a fix.
Not much feedback about this one yet, but we've set up a discussion thread in the Thunderbolt hacking forums, so if you have taken the plunge, thinking about taking it, or just have questions there's a place to do it. This certainly looks like some nice work, hats off to dbzfanatic for the program! [XDA Developers] Thanks everyone who sent this in!