I was just thinking about this sim, and saw this thread again.
Quote on Facebook (beta-tester or something?) "Paul Keeghan
Well some good news guys, Zach is taking some time off 2nd half of this year to really get Kartsim moving. Cant Guarantee any sort of release yet. But I currently have a version on my PC (albiet with unfinished models and no animations) which runs wi...th my G25. I'm Excited and hoping for a playable demo by the end of the year."