I put together an Arduino UNO with the data logging shield to make a serial logging device that I intent to sell. The boards will be unmodified and, at most, will have a button and a serial port connection added and packed into an enclosure. Most of the work was done on the software for the device to communicate and collect the data properly.
I have searched for a couple of days on this site but I cannot find what the licensing is for the shields sold by Adafruit (in particular http://www.adafruit.com/products/243). Can they be used, as purchased, in commercial products? If the shields cannot be incorporated into a commercial product, can their designs be used? I checked with the Arduino FAQ and they do allow to use the Arduino unmodified but I doubt that extends to any 3rd party shields.
If this licensing information is posted on this site, since I most likely missed it, please let me know.
Thanks for any info on this,