One of the great new features of the iPhone 3.0 is the “Find my iPhone” service. With this service, if you have lost your iPhone, you can send it a message to start ringing (even if the silencer is on) and so find it in your house. Alternatively, if it isn’t there, you can see where it last registered a location signal using GPS or phone tower triangulation. Of course, you can do that even if you haven’t lost the phone. For instance, I can now find my spouse and she can find me. Actually, I am more likely to be found as I am rarely apart from my iPhone. But I can see the wonderous possibilities for keeping track of teenage children.
The only problem is that the feature is not password protected. That is fine for adults but not fine for thieves or teenagers. In their case, they can simply switch off the feature. For thieves you can prevent this by having a password lock on the whole device but for teenagers that won’t really work. Apple need to think hard about this. Activating this feature properly might make the iPhone the phone of choice for parents and let’s face it, do that and demand becomes close to infinite.