Take a gander at this little channel 9 video and Hear Scott Guthrie announce Microsoft's interest in bringing the Dot Net Framework to the Mac, I know its old but still promising.
Page rendered at Friday, November 21, 2008 4:33:00 AM (Pacific Standard Time, UTC-08:00)
Disclaimer The opinions expressed herein are my own personal opinions and do not represent my employer's view in anyway.