MAKE flickr pool member mrbill is tinkering around with an AVR Butterfly 4- Atmel AVR Butterfly microcontroller evaluation kit. Also has temperature sensor and speaker. The best thing - it's only $20! In the photo, he spells MAKE! Link.
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It's actually just an "AVR Butterfly" - that was the 4th picture in the set. I've renamed them so this is a little clearer now.
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