The age-old art of passing notes in class has gone high-tech, as students with handheld computers are foregoing pencil and paper to swap information surreptitiously via infrared beams.

The phenomenon, known as "beaming," is catching on for its novelty and convenience. Standing or sitting just a few feet apart, people with portable devices like 3Com's Palm Computing series or Handspring's Visor can send notes, memos, business cards, and even software with a touch of a button.

"It's kind of the geek handshake," said Steve Kan, a management consultant in Los Angeles. When members of Kan's family


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