According to a thread on the gemot, there is now a project in progress to make an English translated version of the XBOX360 port of Nitro+’s CHAOS;HEAD playable on the PC. This project is still looking for translators and programmers, so people who are interested are encouraged to drop by their IRC channel on Rizon, #ensue.
CHAOS;HEAD is a sci-fi visual novel about the ability to create delusions and had recently received a mostly complete fan-translated English patch. This game has spawned an animated series, novelizations and several manga series, as well as a port to the XBOX 360 featuring improved image resolution (1280×720 versus 800×600), new scenarios and new music. The XBOX 360 is still rated 18+, but does not feature sex scenes. It looks like the finished translation for NOAH will require both the XBOX 360 game as well as the original PC game at this point.