Epson has finally released some useful info on which of their printers will be supported in OSX 10.1. The info is here: http://support.epson.com/webadvice/wa0301.html.
[Editor's note: It appears that if you don't have an Epson USB printer, you're out of luck. My serial Epson 800 isn't on the list, which is not all that surprising, but still a little disappointing. It is several years old, so maybe it's a good excuse for an upgrade. Anyone know of affordable Ethernet-capable color printers supported in OS X? I'd love to share one printer amongst two Macs and two PC's.]
Mac OS X Hints
http://hints.macworld.com/article.php?story=20010814133625303