Plus, it's on the back of the phone. So if you need to make a call to someone on your address book, you need to flip the phone back and forth (and then up and

Plus, it's on the back of the phone. So if you need to make a call to someone on your address book, you need to flip the phone back and forth (and then up and down to verify the number on the display) to make sure you typed it in right.