So you've got your new iPhone and you're ready to use it as a replacement for your ancient Garmin GPS. You route your directions, turn on voice commands, and hop in the car. It works wonderfully, giving you turn by turn directions, showing you exactly where you are. But then you notice the same google maps program on your iPad, your little sisters iPod touch, and even that little "My Location" button in Google Maps on your Mac. Does every Apple device come with GPS? Well, as we will find out, not all devices are made alike, and with a little definition, we'll find out exactly which Apple devices are the best Global Positioning Systems.