Hello Zbigniew,      

   ZB> Perhaps someone tried something like this with NetBSD?

The closest I've come was to attach a VNC terminal to a NetBSD host. I 
did this mostly to demonstrate that it could be done (two people could
use the host at the same time).  The original plan was to have four 
VNC terminals hooked to a single NetBSD host that provided them with a
Web browser and possibly some other lightweight applications. I need a 
more powerful host and have yet to decide between X and VNC for the
terminals.

Czesc,
  - Andy.