Curiously, the iPad Mini 3 is identical to last year's iPad Mini 2 -- the same screen, the same camera, the same A7 SoC, the same dimensions -- except it now has a Touch ID fingerprint sensor. Even weirder: Last year's iPad Mini 2 is still for sale, but starting $100 cheaper at just $300. Yes, in a complete 12-month product cycle, the only change Apple has made to the iPad Mini 3 is the addition of the Touch ID sensor -- and it'll cost you an extra $100 if you want to use it.