Timeline has been so useful. I have used it as a way to recall where we stopped in holidays, check where I was when I made a purchase, and to help diarise work related car trips for tax purposes. Having a small computer a with you with lots of sensors on it that is able to record images, sounds, and log location is infinitely more useful when it is searchable in an archive. I don't want to have to do that searching on a small screen.