For 3.1:
- write SLP service template for remote desktop protocols
  (documentation)

For 3.2:
- when krfb is started with URL arguments and without connection
  quality, add some kind of smart algorithm to determine whether the
  other host is local (maybe using SLP to announce the connectivity 
  of a LAN)
- enhance RFB with SASL authentication (Kerberos)
- encrypted connections (using SASL and/or SSL/TLS)

Todo (unscheduled features):
- NAT traversal support if I can find an acceptable implementation
  (probably using TURN, as soon as there is a server and newer spec for that)
- split krfb into 2 separate programs (server and invitation)
- look into adding an extension to xfree to improve speed (get noticed of
  screen updates)
- cut & paste support

Known bugs/problems:
- the IP address is displayed in the new connection dialog. The host name 
  would be nicer.
- the IP address sent in invitation may be wrong on multi-homed machines, 
  and it is always incorrect behind a NAT. Right now it is not possible
  to solve these problems.