I spend my days behind computer terminals, connected via always-on wireless, cell phone and 1.54 Mb line at my house. I'd had enough of computers and technology...
That said, the PCT if, of course, closed to motorized vehicles, and bicycles alike. I enjoy nature and preserving it, but I tend to disagree with allowing horses on trails without forcing the riders to pick up after them (see wads of horse doo at the head of an otherwise pristing creek flowing out of a mountain really sucks -- it means you can't drink the water without treating, or at all), and would've really loved to "poach" my mountainbike along some sections -- it's basically singletrack from Mexico to Canada!