Methods of Tracking Position i Pod Touch – Wi-Fi used to find location by detecting known hotspots. iPhone – Cellular triangulation uses the mobile communication towers to pinpoint location iPhone 3G – Built in GPS means satellite navigation capability and higher accuracy location detection

Data Retrieval from Facebook To interact with Facebook, the users login details will be passed to our server. Our server then prentends to be the user and retrieves the friend list and stores on our database. Required data is then sent to the application on the device. Our server will act as a “middle man” to send and receive data from the site.

Server Types Dedicated – Shared – Purchased – Lease a server not shared with anyone Full control over server Maintenance carried out by hosting company Share server with other users Cheap as other users pay towards costs Limited control over server Data security more of an issue Buy own server High initial cost Must maintain yourself Complete control of server

Data Retrieval for MySpace MySpace allows other sites to access users accounts using Access Delegation. 1.Obtain an Unauthorized Request Token 2.Obtain User Authorization 3.Obtain an Access Token

Data Retrieval for Twitter HTTP Basic Authentication is the only supported authentication scheme. Once login details are obtained from the user, our server can access twitter and request the friend list via a list of commands given by the Twitter API.

iTunes App Store To get this application, users must purchase it through the iTunes App Store. Applications are limited to a maximum price of £11.99 and a maximum file size of 2GB. Our finished application must be approved by Apple before they allow it to go on sale in the App store.