Speaking of RF, Mitsumi does have something even more awesome that will be launched sooner.
ENGADGET: Mitsumi exhibits micro-vibration power generator and batteryless RF switch (video)
This picture from Mitsumi's CEATEC booth may not seem to say much, but it's certainly showing the future.
In fact, Mitsumi says these can be integrated into the RF sensor network of large air conditioning facilities, as an RF transmitter can run on very little power these days -- even less than a calculator.
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