I have used wetpaint for a short while and already I am a big fan of this killer app. It is more fun than facebook, more useful than google docs or zoho writer, better project management tool than basecamp and most of all, its free. I am sure there will be many many features added to this wonderful app in near future. I just hope some big fish like M$crosoft or G00gle doesn't buy it off and kill all the creative and fun features.