Only a few days after I mention a GUI for Synergy on OSX, I find an even better one. This one runs on OSX and Linux and comes with everything you need – download, run and you’re all set. If you need to share a mouse and keyboard amongst multiple machines, Synergy is the stuff, and if you’re doing it on a mac, Quicksynergy is going to make it as easy as it’s going to get to get it up and running.