I have deodexed it, rooted it, added busybox, and packaged it up.
You MUST be on the ICS OTA firmware before applying this one.
It will not work without the firmware update that goes with it.
And while this is an update, you need to wipe everything before installing it.
Dev-Host: ICS Global Phone Update
Goo.im: ICS Global Phone Update
Dev-Host: ICS Global Phone Update Firmware
Goo.im: ICS Global Phone Update Firmware