Hi!
Some of todays devices are designed to sleep between keystrokes,
including cellphones and olpc notebook. It is doable in todays
hardware... and my sleepy linux patches aim to do something like that.
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(english)
http://www.livejournal.com/~pavelmachek
(cesky, pictures)
http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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