Apple's web browser Safari 3 is now available for the PC as a free Public Beta. And it's 2x faster than Internet Explorer 7. Steve said, so it's true.
http://www.apple.com/safari/
I'm still stickin with my Firefox. But it's only a matter of time before all PC users will be running Mac software, be prepared
More features announced for Leopard OSX http://www.apple.com/macosx/leopard/
It runs faster than version 2 did on the Mac, but I don't know about Windows…