THIS IS GINGERBREAD NOT ICS
Thanks to hgoldner for taking the time to install the OTA update and get me a rooted system image to work with!
This is the late January/early Feburary GingerBread OTA update integrated into the rezound shipped stock rom. No new features other than what the OTA adds other than root and custom recovery based installation support. That isn't the point of this rom.
What will this get you:
1. New stock rom with OTA update built in
2. New firmware like hboot, radio, etc. Won't impact the ability to unlock/relock
3. Any rom fixes htc made.
If this doesn't work for some reason, it is probably my fault but it should work. Any damage caused to your device is your problem, not mine, hgoldner, htc, anyone except you. This does push the new firmware to your device via a PH98IMG.zip. If this could brick, but is very unlikely. The PH image is UNTOUCHED from the HTC release.
Thanks to ardreissig for the reupload!
Info on installing. You unfortunately have to relock for the firmware flash to occur if you are S-ON.
So if you want firmware (these are abbreviated, general outline steps for more advanced users):
1: Install in recovery
2: Relock if you are S-ON. Remember this will wipe your internal sd card. But since you just installed the rom from a clean flash you won't lose app data and such.
3. Install PH98IMG.zip deposited by my rom on the card
4. Unlock if you are S-ON
OP updated 6/22 to future proof instructions.