http://www.nbos.com/products/screenmonkey/screenmonkey-lite.htm (http://www.nbos.com/products/screenmonkey/screenmonkey-lite.htm)
Another Gametable software. Host sets up a game (acts as a webserver), and users are given a link. No download for clients, it all works within a web browser.
(Click to enlarge)
Client Interface
(http://www.nbos.com/products/screenmonkey/screenshots/SM-Player-Chrome.png)
DM Interface (and host/server)
(http://www.nbos.com/products/screenmonkey/screenshots/SM-GM-Interface.png)
Yeah I messed with this a while back, its tends to lose connection alot, at least it did back when I tried it.