NZ GPS application for Android & iOS

I need an iPhone and Android GPS app to be developed using the source code from [login to view URL] All the GPS functionality are available on NZopen GPS. They provide the source code and the map info for New Zealand. [login to view URL] It has details about the POI's in NZ. All these code, maps can be reused to build the GPS app for iPhone and Android. We are building a e-commerce website and CRM. The app needs to request login the first time they install the app. This login will be their login on the CRM. The login will pick up appointments from their calendar on the CRM and add it to their itenary on the GPS application. Once a appointment is completed the users have the option to add a 'sales result' and a 'sales feedback' to their appointment. The CRM has a 'sales result' status as a lead status and the 'sales feedback' as a text field. These are updated by the app. Summary: 1) Changing the NZ open GPS to fit android and iPhone. 2) Linking to our CRM to login, fetch appointments from calendar, change status of appointment on CRM and a 'sales feedback' to it.