Ever needed a way to use your iPhone to control your iPad camera, or vice versa? No? How about using your iPod touch as a baby monitor, with an iPad upstairs to monitor your baby’s nap time? Or keeping an eye on a pet in the other room with your iPhone? You might want to take a picture with your iPhone on a tripod, to get a large group of people in the shot, because let’s face it, no one’s arm is that long.