Starting today, all video on MSNBC will now be available on the Mac without the need for Windows Media Player or Flip4Mac installed. Here's how it works:
If you hit the site with Win Internet Explorer 6 or 7 you get Windows Media video
If you hit the site with Mac FireFox you get flash based video
It doesn't look like it supports Flash in Safari, but that could be just because I haven't got the newest version of the Flash player.
Slowly but surely other groups at Microsoft are "getting it" when it comes to supporting the Mac.