The web site has been predicting the Mac port for ages without even showing screenshots. I wouldn't hold my breath. Once OS X is out, I'm sure the Mac browser landscape will change rapidly. Explorer will definitely be carbonized and I expect we will see some interesting Unix or Linux ports. Cocoa under OS X offers developers a fast track environment for browser creation so the cost of entry will be significantly lowered.
Lets keep our fingers crossed.
In order to play to Mac traditionalists it will need some HI work, but the problems don't run too deep. Rumble in the Jungle Sadly for consumers the Microsoft-Netscape browser wars are over. Gone are the days of rapid-fire innovation and progress. Explorer killed Netscape Navigator as we know it. M5 in its current state is no match for Explorer 5.