GoLocalBot. The project is closed - Platform for volunteers, NGOs, activists and crowdmapping.
Sygic Travel Maps - Itinerary planner for independent travelers
GivingWay - Travel the world, do some good.
MyWonderbird - MyWonderbird is not only an app for travelers - it is a community of travelers.
Volgistics - Volgistics is a volunteer management software solution, that helps to manage volunteers through the entire volunteer cycle.
ETA - Executive Travel App - Plan and book your next business trip in 5 minutes.