According to Unrevoked team twitter NAND unlock SOON.
Just checked their twitter.
Unrevoked (unrevoked) on Twitter
Hopefully close means tonight. I wanna root my phone again. Just went back to stock last night.
"No ETA yet, just "close". We're working on smoothing out the process right now."
"Our NAND unlock will flash a custom recovery that gives you full control over the device. You'll need to root once via adb."
"We'll be releasing it for Linux/OSX/Windows at the same time."
"The unrevoked USB bootloader NAND unlock for Incredible/EVO is getting close. We've been testing it with a small group and it works well!"