The bummer is that SmithMicro is charging for the OS X version of FAXSTF. It would be nice if Apple had made an arrangement with them to provide an update to Mac owners upgrading to OS X.
The only thing I've found so far to fax with OS X is <a href="http://www.macadvocacy.com/cocoaefax.htm">Cocoa EFax</a>.
kevin