Google have this locked up in the wordings. If you buy teh device and use it then you cannot sell it on. Ifyou buy it as a gift you cannot use it before you would give it to that person. The device can only ever have one owner from new. Unless authorised by Google. So selling USB cable with with free google glasses doesnt work either as it will already be registere. Yes this is wrong and I do not agree with it hence not buying one ever unless they change this. Plus you can only own one device ???