Tinychat is a bit different than livestream. Livestream is good at recording high def video from a single source and having a nice chat feed to go with it. Tinychat's video is very low quality and nothing is recorded for playback, but it's a bit more social. You can have up to 12 video feeds going at once, and you can enlarge any one of the if you want to get a better look. It's great fun if you're just arting around and want some company. You can see what others are working on as you draw and chat. Going to give this a try and see how it works out. :-)
Tinychat URL: http://tinychat.com/flightrising
I put together a little tutorial on how to broadcast your desktop.