We license a software-based, multi-platform controller software and hardware that is used, among other things, to control electronic cigarettes we manufacture. It involves a variety of both proprietary and GPL-based components (used only on the e-cigarette as open source). Specifically the software I am writing about here uses an iPhone (GRX Controller 1.0), Android, Windows or OS X via Bluetooth or Wifi web page to control the e-cigarettes. This includes both a display (power levels, etc.) and a controleller (setting power levels). (Other versions of this run on Windows, Mac, and Android to do the same.)
This potentially means that Linux, iOS, Mac OSX, Windows, and who knows what else will be impacted in unimaginable ways. "Tobacco products" cannot, as examples, be given away or sold to children.