It acts as a simple wall for an unconference that can be used before the unconference kicks off. The idea is that before your unconfernce starts some fo your users can put their sessions up on it, and other users can 'like' the session which means that they would like to attend. Then when the day starts you can take the 6 or 7 mowt popular sessions and put them in the biggest rooms. That is all!
OAUth is a bit tricky, so local stuff might not work right. go to http://dev.twitter.com and register a new application. Set it's callback url to be http://localhost:8000 or wherever you are hosting it. copy the settings.py into local_settings.py and set your Consumer key and secret. Hit your local copy, and click signin and click allow. If you are lucky you'll be redirected back and logged into your own system. Once you publish it to the web, update twitters callback url to the correct url.
Lets say GPLv3, contact me if you have queries or want a different license