“Synergy lets you easily share a single mouse and keyboard between multiple computers with different operating systems, each with its own display, without special hardware. It’s intended for users with multiple computers on their desk since each system uses its own monitor(s).”

root@guda-desktop:/etc# cat synergy.conf

section: screens
desktop:
guda-laptop:
end

section: aliases
guda-laptop:
192.168.1.101
end

section: links
desktop:
right = desktop
guda-laptop:
left = guda-laptop
end

# synergys –config /etc/synergy.conf
# synergyc IP

On windows I am defining:

“Share this computer…” -> configure

Screens: desktop, guda-laptop

links: guda-laptop is left on desktop and the oposite

Updates: Check the http://code.google.com/p/synergy-plus/ clone