I have been trying to root my damn evo 4g for the last 3 hours. Nothing i do is working including unrevoked and revolutionary. Unrevoked hangs at rebooting or some other garbage. Revo doesnt even start. None of the pages for those methods even have instructions. Theres a file to download and a "good luck trying to figure it out on your own dumbass"! What the hell is going on around here!
The number one cause for having problems rooting any device is not following the directions completely. I can't count how many times I've seen someone post "do I really need to..." for a step. If you read up on everything you can find and follow all the directions, you should be fine.