Not sure how many folks are using any sort of machine as a serial terminal tied to a Mac OS X box, but I thought folks might enjoy a recent project of mine (and a few older, similar projects).
Set up as OS X serial terminals:
Epson PX-8 (circa 1984):
http://www.bytecellar.com/archives/000143.php
Apple //c (circa 1984):
http://www.bytecellar.com/archives/000113.php
eMate 300 (circa 1997):
http://www.bytecellar.com/archives/000121.php
blakespot
Set up as OS X serial terminals:
Epson PX-8 (circa 1984):
http://www.bytecellar.com/archives/000143.php
Apple //c (circa 1984):
http://www.bytecellar.com/archives/000113.php
eMate 300 (circa 1997):
http://www.bytecellar.com/archives/000121.php
blakespot