Interesting approach to keyboard/mouse sharing without expensive KVM
hardware.  A possible solution to the rat's nest of cables in my
office.  ;-)

http://synergy2.sourceforge.net/

Be mindful of the complete lack of security here.  Click the "Security"
documentation for instructions on how to run this over ssh.  That is the
ONLY WAY I would use this, regardless of how "trusted" the network is.

...Kevin