I can't find the damned link again, but I was just reading on some blog about a digital watch that serves to wake you up at the "right" time, based on the time you go to sleep, around when you want to wake up, and I think it monitors something to hit you at the right part of some rhythm thing. Sorry I can't be more specific, I'll try to report back later.
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I can't read your signature. Sorry.
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