Understatement of the century: touchscreen technology evolved at a rapid pace in the past decade. In the days of Y2K, Palm Pilots were a big deal. Five years ago? The iPhone debuted and the corresponding touchscreen explosion hasn’t slowed up since. Today we’re at a point where we think we understand how all the innovations in touch technology can fit into our future. But based on these last few years, good luck. Did anyone see the tablet-craze coming?