You have chosen to sponsor your bid up to a maximum amount of .
I'm gathering GPS data for an app I want to deploy in Lagos, Nigeria to help users navigate interesting places in the city. I want the broadest possible buy-in for this app; therefore it must be able to port to iOS, Android and blackberry platforms, as well as a fully dedicated website. I want to be able to upload the GPS data into a database somewhere, and the app connects, and tags those locations anytime the map is opened. The nearest locations can be pulled based on the 'My current location' feature of whichever map API is used.