Hmm... I was following along fairly well until they got to the examples. How is a computing platform or a WiFi card a "function"? If you display information, wouldn't this make the screen a function? (To be fair, when these 'components' could affect the system, we do consider them in risk analysis and such, but to call them functions is, um, unexpected.)
It's been a month now since that was published; I wonder if anyone has had any experience with it?