I just got my new Arduino Mega micro-controller board. I sure can think up some awesome Amateur Radio related projects that I can make with this little puppy!
The Arduino platform is an open source collection of micro controllers and software. You can read more about them at http://arduino.cc/
There are a TON of YouTube videos that show the possibilities of the Arduino. I really love the idea of the LED cube:
I think I will have to attempt to build one of these!
73! de Nick N9SJA