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We are interested in developing an app that have a similar functionality as car navigation systems but for mobile phones. There are many apps out there but we want one of our own. The basic requirements are below
Turn by Turn Voice enabled navigation
required platforms are Android, Blackberry, symbian, iOS
Multiple searching options
Optimal route planning.
route generation on the fly from vector data
Application should be able to use multiple map sources including Openstreetmaps
prior experience of navigation app is highly desirable
blackberry, android, iOS, symbian