With all the Apple tablet talk these days, it'd be OK to lose sight of the fact that the company's been there before (sort of) with the Newton. Seen here is a rare "Batmobile" prototype of that defunct PDA.
From Flickr user and Batmobile owner splorp, we learn that the Batmobile was a pre-release model of the Apple MessagePad (related to the Newton platform). Sadly, this particular unit does not work, and may have never worked, having been a "technical sample only." [Flickr]