In addition to negating the need for a mouse pad except for personal expression, the new mouse's optical technology will make it a good alternative for PowerBook and iBook owners who don't like those computers' built-in trackpads.

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However, unlike our Logitech Anywhere Mouse MX with Darkfield Dangerfield technology, the Whirl Mini didn't work on our glass desk.

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David Dagon, a professor of cybersecurity at Georgia Tech who's familiar with Pramana, hints that the technology may involve tracking mouse movements for signs of human timing.

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Technology readily fills the role of mouse, always outpacing its counterpart. (Think of Tom and Jerry.) This is unlikely to change in the foreseeable future, if ever.

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Suddenly, information-technology departments could set up programs with a few mouse clicks instead of taking days or weeks to install servers and software.

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This is an early demonstration of course, though Fujitsu has already enumerated several applications for this technology, from assisting disabled users to simply eliminating the need to look down at the mouse and keyboard.

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He believes this sort of approach will have far wider appeal than today's windows and mouse-based systems, and he has founded a start-up, called Perceptive Pixel, to commercialise the technology.

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Stadium owners would welcome the technology as well, as it would help them get more use out of the field: A few mouse clicks is all it takes to change the field from a gridiron to a soccer pitch.

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