A while back, I read this story (don't remember where -- I think it may have been 'Computer Stupidities' on rinkworks.com or some such place) about a fellow who wanted to network his PC with that of a friend who lived in an apartment directly across the street from his window. They ran a regular 10Base-T crossover cable from one computer, out the window and across the street, straight into the friend's window and then into their computer. I guess they thought they were high enough up, floor-wise, that vehicle traffic in the street below would not be a problem. They were soon proved very wrong. The setup worked just fine until, one day, this guy's computer literally flew straight out the window in mid-type (his friend's computer was saved when the network cable snapped). It seems that a good-sized truck, with a nice tall exhaust stack, had passed by and snagged the network cable as neatly as any fighter jet's arresting hook would snag the braking cable on an aircraft carrier. Is that taking 'mobile computing' just a bit far, or what? ;-)