Apps Customized Android GPS solution with off-line maps & navigation

[ziyadnour]

I am working to develop a customized business concept to call a taxi. Where customers request a Taxi on smart phone app.

Taxi drivers will have an Android GPS pre-loaded with maps to work off line. The Taxi driver is guided to the customer using voice navigation (for safety).

Questions:
* Where to find the latest maps to be used for Andriod GPS off-line.
* Which software to use for voice navigation off-line.
* Which software to use for off-line navigation directions from point A to point B.

 

[shatztal]

there is already one like this. iTaxi.
a Israel Startup devloped it and already in try in europe and ASIA

 

[IgorG]

You can find maps in OpenStreetMaps. Can't post a link as a new user, just google it