After saying that I personally believed Digital Mapping was a gold mine for African web app developers, because of the variety of revenues streams that could be derived from it, here come NODIS  from Alain Nono and Christian Nono in Cameroon. Along the different services they have available, an early development of a GPS customized with local street maps  for Douala and Yaoundé.

I’m glad to find out about this development; these guys are making it happen with no help whatsoever from the Authorities. There are unlimited possibilities once the streets mapping stage is completed. Although this will probably be more complex since the streets are not numbered nor registered in public databases, the information will have to be manually entered.