There's been plenty of community-oriented shell providers offering Unix, and here and there some with more obscure systems. How would it be to hook up something like a CADR to a modern network and dish up logins free of charge?
It'd probably start off on an emulator unless someone happens to own a real working one.
>>1
Why would I share my Lisp Machine with you?
Aren't Lisp machines single user workstations?
How about this?
https://github.com/Interlisp/medley
Can't see that working very well since they're single-user machines with little to no facilities for time-sharing (and part of the endearment with public access systems is getting to time-share them like they were supposed to and all). If you're doing emulation anyway, an alternative could be something like "ssh in with X forwarding and we spawn a dedicated lispm, connected to a chaosnet network with other emulators and all" (if you're feeling fancy maybe throw in other public systems (ITS?), or let people connect bridge their own stuff in or whatever), which would be kind of like using a lispm in an actual lab, but I don't know how cool that'd be.
Does your Lisp machine have a web browser?