Wow ! This is awesome ! I think it would be cool if we would compile "city packs". So you can download all data for a city and don't need to go online. Plus i think it would be awesome to have these guides edited by people who actually live in the city because they now all the insider stuff Since this community is scattered all over the world, we might actually be able to get a nice collection together...
(Another think that would be nice for these "packs" are timetables/maps of public transportation)