For as long as tablet PCs have been around, Mac users have wondered if Apple would be releasing a tablet running Mac OS X. Google image searchs for "iTablet" and "iTablet mockup" return a respectable number of mockups ranging from the fanciful to the utilitarian. And once upon a time, Apple had a promising handwriting recognition system that would be perfect for a tablet. No, I'm not thinking of the late and lamented Newton, but the "Ink" feature built into Jaguar (Mac OS X 10.2). Ink provided handwriting-recognition functionality along with the ability to input commands via gestures, and required a graphics tablet to function. Now called "Inkwell," the functionality is still around, but definitely not a featured technology in Mac OS X.