Just watched the WWDC 2004 keynote video [via Steve's blog], then read Omar's comment: he is so right about Tiger (ships in 2005), and Longhorn takes too long to get more focus for now. When I have to buy a new machine for home usage, it will be definitly a Mac, with preferred Tiger installed. For this I can wait the year. Maybe with a new 23" display (the new 30" one is far too expensive for me, but really cool! With the dual-dual DVI cable and 4.1 million pixel resolution...)
Wouldn't a port of mono to Mac OS X (Tiger) with a System.Windows.Forms implementation using the Mac widgets be a cool project?