Smith Micro today announced the debut of FAXstf X Pro 10.5, featuring support for Mac OS X 10.3 (Panther). Version 10.5 leverages Panther’s “Fast User Switching” feature, enabling users who share the same machine to receive incoming faxes to their own FAXstf inbox. In addition, this update offers a number of new features and tweaks, all of which are detailed in the press release.