Disconnecting Completely while on Vacation?

vonsneerderhooten writes: "This summer, I took a weeklong vacation, left my cell phone at home and enjoyed the liberation of being completely disconnected from the (working) world. Recently, I came upon this article stating that many people don't take vacations longer than a long weekend. Worse still, a majority are worrying about work, calling the office and checking e-mail. How far removed are you when on vacation? To what lengths will you go to make yourself (un)available?"