Does Latitude work differently on an Android phone than on an Apple iPhone4S? I have the iPhone. My son and husband have Androids. Latitude always tells me where I am, which I already know, but it does not always tell me where others are and they say they have not disabled it in any way. It often tells me where they were at hours ago, but doesn't update often enough to let me know where they are in present time. Please tell me how to use it to determine where they are in present time. Thanks!