So I think this is based on the very the cool node.js and simple.io technology that I've been seeing more and more often but for us Microsoft DotNetters. It's dependant on WebSocket technology in browsers and HTML 5 but its been quite low on my radar and very low down on my to learn list so I may have that wrong.

Forgive me if they do not share the same kind of technology but it still looks cool and it's nice that scott and the chaps at dev div are looking that this sort of thing in the first place.

By the url in the screenshot it's also hosted on my current favourite hosting platform called AppHarbor which gains even more cool and shiny points for me.

If I see more of this then it's getting bumped up higher my to learn list!