Finally got around to loading up WCIII on my 17" iMac last night. The widescreen mode (1440x900 I think) is fully supported full screen in game mode, and it looks fantastic! I hope other game manufacturers follow suit. Of course, I'm not sure it the game itself is just reading the resolutions available in OS X or not. I find it odd that WC supports the widescreen iMac and yet the game was released over a month earlier that the new iMac. ?