AT THE Nomad Café in Oakland, California, Tia Katrina Canlas, a law student at the nearby university in Berkeley, places her double Americano next to her mobile phone and iPod, opens her MacBook laptop computer and logs on to the café's wireless internet connection to study for her class on the legal treatment of sexual orientation. She is a regular here but doesn't usually bring cash, so her credit-card statement reads “Nomad, Nomad, Nomad, Nomad”. That says it all, she thinks. Permanently connected, she communicates by text, photo, video or voice throughout the day with her friends and family, and does her “work stuff” at the same time. She roams around town, but often alights at oases that cater to nomads.