Sorry it took so long to reply, I've been spreading myself thin. 
Strange, I was under the impression that synergy would work with wireless networks.
The CNet demonstrator, referred to it as (geeky double duty).  I think I understood her correctly.

I still haven't had a lot of time to play with it yet.  Getting ready for winter, and recovering from a pulled muscle,  it slowed me down quite a bit.  You said, they didn't program in What's Up.  Check this YouTube video out:

www.youtube.com/watch

It was this video, that sold me on synergy.

"Also, discovered on the first working attempt, that you have to set up a 'link' to go to another computer AND to get back.  The first time it work, I scrolled over to the other machine and couldn't get back.  CTRL - ALT - DEL got me to the Task Manager on the server, but I couldn't use it because the mouse and keyboard were still stuck on the other machine.  Next step, I killed the client on the machine I was stuck on and that brought me back to the original computer.  :)"

As I said, I haven't had a lot of time to mess with it myself, but it sounds like the clients were recognized.  But the server wasn't.
You might be able to find the answer on the web page:
                                                                                                     synergy2.sourceforge.net/

If you can't find an answer there, try their help fourm:
                                                                                                    sourceforge.net/forum/

Again, sorry it took so long to reply