I see from Googling that Snow Leopard will also not print to an Appletalk printer. X.5, by contrast, will even print to a localtalk printer (with an Appletalk Router on the network).

There are, of course, workarounds like print servers, but for most people, this kind of tinkering is beyond reach.

IT types may rejoice at the demise of Appletalk, but it is bad for the ordinary user. Appletalk was an excellent protocol for the ordinary user.