Today, Pixel Dailies set up a doc over on Google, and invited everyone over to free draw. It's pretty cool to watch others pixel art while you do as well. There should be some program that allows this. A live drawing app with other people. I might get around to making that some day... who knows ;)
Here's the doc: https://docs.google.com/spreadsheets/d/1WMPKQ5SGozqpHFrhDUPBpGkP-bGxPoLtrKer1ubravk/edit#gid=0