TransGaming and Nvidia team up for high-end games on the Mac - Joystiq:
Cider is TransGaming's Intel-based Macintosh portability engine intended to enable (not to mention expedite) the "porting" of games from the Windows platform to the Mac OS X platform.
Read the posting for the full text. This is very good news, assuming it comes to fruition. TransGaming has put a lot of effort into their Cider engine, which is a follow on to a similar engine they developed for Linux. Check out the Cider FAQ.