As Foursquare has been released, Location-Based Services (LBS) are more and more popular even best Chinese Android phone get that function in it. More and more smartphone apps integrated Location-Based function into. Before smarphones get popular, GPS is the closest concept to LBS. At the PC age, it’s not necessary to get our position, only GPS in the car is useful in our life. But now, we use mobile devices like smartp... Read More