The pen may be mightier than the sword, but these days it's facing some stiff competition from the personal computer. That's why Logitech created the IO Personal Digital Pen ($199), a new, cyborganic writing implement that bridges the otherwise mutually exclusive worlds of screen and paper. Here's how it works: the IO writes like an ordinary ballpoint pen, but it contains a computer chip that records and remembers every scribble. When you're through writing, the IO downloads your jottings to your PC, where you can either save them as pictures or use handwriting-recognition software to convert them to text in an...
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