Have any of you guys used this: http://pjrc.com/store/teensy.html
Is it any good? I think it should be perfect for what I need.... As far as I can tell, it's compatable with the Arduino software, and it says it has "25 I/O, 12 analogue, and 7 PWM" pins. And I need 21 digital I/O, and 1 analogue in. So should be perfect.....
Am I missing anything here? Or is this really as great as it sounds.
EDIT:: I'm looking for something to control 6 buttons, and 5 RGB LED's, and a mic. One button controls all 5 LEDS, and the other 5 control 1 LED each. So you can change the colors of all of them at once, or individually. The mic can be turned on or off, to make the LEDS flash in time to the beat of music.