Android GPS Application 2

Hello, I need some modifications made to an existing Android App we are using. We want the mobile device, when the app is opened to determine its location, map to a provided address, and report its location to a web portal. Our existing web portal will have to be modified to show the location of the various people using the application. This project is for both the web portal and android app modifications. A non-disclosure will be required. All code will become property of our client. Feel free to ask for clarifications, and please give us some idea of your experiences and past work. Thanks and good luck!