Android Mushup app - maps and SMS inbox

I need a android app to call taxi cab, via HTTP JSON API. The process will very easy. In the fist app open, the client will tell your name and choose your phone number (the app need now all phone numbers and list they), the info will be stored. The user will search a place, and will route to another place. the 2 points must be found in google geocoder API as a street_address or a route. The route must be shoed in the google map. After the app route correctly, the app will call my api to show to the user the normal and special price and the app will show a button to call the cab and a text field to user tell your actual description. If the user call the cab the app will then call the api and will send the start point, end point, user phone, user name and user description The service will send a SMS to indicated phone, with a SMS and app must understand it, and call automatically the api to confirm the cab request with the activated code sent in SMS The service will notice the user with another SMS, in that time with the cab driver information. The app must store all used points and these will be listed to user when he/she start a new route. The app must store all finalized cab requested. The app must be internationalized. After, the bid winner will get more infomations.