First, a question, how do you get that X implimentation to acutally work??? and how do you connect to other X boxes?
As for appleshare, yes OS 9 boxes can connect to it, it runs pretty cool. I'm here on a collage campus and can connect all over the place. To run it, activiate it over in the System Preferences pannel under sharing where you also have the option of activating Telnet communication (to control your box from any terminal) and FTP server (yes, you can automatically turn your whole box into an FTP server if you please.. for those non appletalk folks). And also, if you activate the classic environment, any filesharing options from OS9 will also become active as well... so all appletalk/appleshare options will function.
As for printers, that's still sort of an oddity as of yet. It should be possible to access an older (non-USB) printer. as for over a network, you would think so, but ya' never know... it is a beta, and a lot of features do not yet work like they will in the GoldMaster release (which will ROCK like a big boulder).