[jsjenkins168]

This is really cool. If you incorporate collaboration functionality it could also be very useful for presentations or online meetings.

[zhyder]

There is collaboration functionality already. Click the "Share" button on the top-right. It's not truly real-time yet though. (You either share offline, or if working online together, you have to hit the annoying refresh button).

I need to figure out long-polling/Comet and see if I can make true real-time work.