Hi All, As we think of projects that we would like to work on at the Mumbai hackathon in mid November, I'd like to examine development of GPS data based custom mobile map applications. Having custom maps that can be developed using GPS data as well as generated and shared via mobile devices could open up contributions to content specific maps on Wikimedia sites. These custom maps could be incredibly useful to view with articles on places, treks on topics such as hiking in the Himalayas or Alps, tracing historic battlegrounds, or trekking though wildlife sanctuaries. Android recently released an open source app named CustomMaps to help build such apps. Check out http://code.google.com/p/custom-maps/. I would really like mobile app developers take up the challenge of building such apps for Wikipedia content. Anyone interested :-) -Alolita