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Beepy, a palm-sized Linux hacking playground
(hackaday.com)
This is a most excellent place for technology news and articles.
I’m toying with the idea of pairing this through the gpio pins on the pi to an A9G 4G/GPS module and a battery. With voice, text, data and location, you could do anything. Bulky as heck by the time you encase it but it could be cool.