Same here, guess I'm not alone.
I have been printing to a Samsung ML-2010 since 10.4 Tiger on an AnyCom PM-300 dongle, and have never had an issue until Snow leopard. I shared the printer wirelessly throughout the house to 3 Macs.
Since updating when I finally get Bluetooth to recognize the dongle, I go to printers and the only facility now available to add the printer is the Fax Icon on the toolbar calling it a Bluetooth DUN, obviously not the right one.
Looks like another oversight in the rush to release.
Grrrr - note to self (for the 15th time)
I will not early adopt
I will not early adopt
I will not early adopt.
Well, maybe this once. Get out the old 10 foot usb cable I guess.
Jamy