MSN for Mac
Daniel and OSeXy! provide links to info on MSN for Mac... now available in limited areas... but only for OS 8.6 to OS 9.
Cnet article with some info on the Qwest/MSN partnership...
and Qwest's system requirements
* Processor: Macintosh PowerPC (G3 or higher recommended)
* Operating system: Mac OS 8.6 and higher but not Mac OS X