You've never worked in a customer support call center before, have you? Average Joe doesn't care where the email/game/internet/whatever came from, they typically call the support of the device they see in front of them. If it's their phone, they call the phone company. If it's the computer, they call the computer manufacturer. It doesn't matter if they really should be calling someone else, the first call is invariably to the support of the device immediately in front of them. We're like a 411 information service, apparently.
I get the most fun from people calling for support for their computer when the display is from one maker, and the pc another. Almost all of the time, if the caller is over 40, they call the maker of the display first since that is the name/logo immediately available.
You might think I'm joking, but Average Joe isn't an idiot, he isn't "dumb". He needs help NOW, and simply calls the immediately obvious name first and goes from their.