The OpenStreetMap User Group Bremen invites you to our public transport mapping party (it will most likely be in German :-). You find more information at http://osm-bremen.de or at the wiki.
We will have two presentations and a practical part that requires some knowledge editing OSM (we will be using jOSM).
Do you have any suggestions regarding "must haves", topics that are important and should be mentioned?
Talk-transit mailing list
I hope you are aware of the public transport plugin for JOSM created by Darya Golovko, as part of GSoC.