Windows Mobile to Android App Migration

I want a Windows Mobile Application to be migrated to Android. The original aplication uses SQL Server 2005 Compact Edition as repository and consume a Webservices in order to sincronize data from and to the device. I want that the Android Aplication uses the same Backend (a .Net web application) that de current windows mobile app uses. The application gets the geolocation (if the device has GPS or with a webservice from google where the gps fails to get de location) on every visit the salesman. The visit to the customer has to posibilities 1. The customer doesn't makes an order in wich casr just reports the location and time since the visits begins and the 2. The customer makes an order...the application enables to Capture Orders and sends (if a connection is available) to the server in the moment or send to a local queue if there is not connection. It has a thread checking the connection to the server and whe it comes available it sends without any user interaction to the server, saving to the local database the remote id of the order. The sync procces makes a Windows Mobile app on the server and restores it in the device for the very first sync, and makes a Delta Sync for the next synchronizations.