And just a few years hence, wireless interactive access devices, such as smart mobile telephones and handheldcomputers, are expected to offer easy Internet access on the move.
Surrounded by computers and handhelddevices at work and at home, people are accustomed to having e-mail within reach nearly all day, making it hard to shift gears on vacation, says Kate Muller, director of psychology training at Montefiore Medical Center in the Bronx, New York.