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!"