From the Store description:
NissanConnect will allow the dealer to register a customer to provide Telematics information from the TCU in the car and to generate various alerts and notifications related to Driving Pattern along with Service & Maintenance monitoring and Nissan Community
As ever, there are some promo screens (confusingly, lifted from the Android version) to give you an idea of how this will look on the phone:
Regular and guest logins...
The main menu, all very generic and not terribly optimised, but the proof is in the pudding - anyone with a Nissan car to try this out? (right) a 'Locate my car' feature is a very nice touch - does it work?