If your phone isn't already jailbroken, download redsn0w and get'r done.(I'd say it's worth it, just for Latitude.) (i Phone 3GS owners: As of this writing it is impossible for you to jailbreak your phone.) On a jailbroken phone, launch the Cydia application then search and download Backgrounder, which will enable you to run applications in the background.
We could choose one of the location providers (network or GPS) and request location updates or set up proximity alert.
But there were two main challenges with this approach: 1.
Latitudie is the most complete Google Latitude client for i Phone and i Pad! Or what about your phone telling you when that friend you haven't seen in a long time is around the corner?
Would you like to see your friends' positions in real time?
Continued use of GPS running in the background can dramatically decrease battery life. You open the app and the next screen is an error and no way to get out of it except to close the app. This app does not deserve even one star but it is the only way my review can be submitted!!
For android applications, the Fused Location Provider intelligently manages the underlying location technology and gives us the best location according to our needs.The permissions that we choose affects the accuracy of the location updates we receive.For example, if we request only coarse location permission, Location Services obfuscates the updated location to an accuracy that is roughly equivalent to a city block.Google Latitude was recently released and it's the best thing ever for sharing your location with close friends and family.Google made the free service available to Blackberry and Android users first (and it only took a week for a million of them to sign up and, incidentally, start catching criminals.) Up until this week, users had been anxiously awaiting the release of Google Latitude for i Phone.Simple APIs: Lets us specify high-level needs like “high accuracy” or “low power”, instead of having to worry about location providers. Immediately Available: Gives our apps immediate access to the best, most recent location 3.