ComputerWorld walks us through four decades of making computing pocket-able. Well, if your pockets are the size of Captain Kangaroo's. From brick-sized calculators to the first Palms, this is a slideshow through the museum of mobile dreams.

At the IAB Mobile Engage conference in the UK this week, MediaCom Managing Partner for Mobile and Innovation Stefan Bardega said that 18% of the digital ads from the company now are being viewed by consumers on mobile devices. The increase has been staggering, up from only 4% of ads a year ago.