NoteShare, a result of integration with the open source TiddlyWiki is a document which sits on your desktop and runs in your browser. When registered users (free) download and open it for the first time, it’ll import a local copy of the agenda, as well as notes already shared by other people at the event. You can write notes on your local document and these will be shared with fellow attendees. Everything is saved and synced automatically. It works off line too, so even a lousy wifi connection won’t keep you from catching a session’s high points. All the notes are cached on Confabb so access to them during and long after the event is quick.