Hey there 🙂 We shall open up a LOT more in coming days. I’ll be sure to remove that note you found on the schematic about being “proprietary” so you can “have at it” with the design! As you noted, it’s available under Creative Commons. You’ll even be able to put an Arduino in the design should you desire! Thanks for the feature Adafruit! – Ken Gracey
You can also read Ken’s post in the Parallax’s forums… This is very intriguing news for the world of hobbyist electronics. Parallax, nice work – keep it up.