Difficult though it may be to believe, the product you see enlarged below is actually a computer. Not a bloated GPS device, not a rough and tough digital photo frame, but a bona fide PC. Glacier Computer’s new Everest E4000 is quite the unique beast, acting as a touchscreen-based computer for specialized, rugged environments that can’t afford the luxuries of keyboards and mice. As Dan Poisson, Glacier Director of Engineering puts it: “The E4000 configuration has been re-engineered to incorporate the features