The way people respond to computers' operating systems is eerily similar to how people approach ice cream flavors: Most opt for plain vanilla or chocolate, even when pistachio or buttered pecan is there for the taking, simply because they are afraid to be disappointed with a new taste. Windows and Mac OS X are absurdly popular operating systems, commanding more than 98 percent of the market, and yet there is a supremely delicious alternative, Linux, waiting in the wings.
