You probably could if Android weren't intentionally constrained by Google to prevent it. That's what fsflover is trying to point out: Android is more of a television firmware than an OS and counting it like a PC OS makes very little sense because you can't use it like one.

EDIT: I think you still don't understand. It doesn't matter what hardware Android runs on it's written to be appliance firmware. Even if you put it on a laptop it just turns the laptop into what is essentially a television.

So I was saying that Android runs the Linux kernel, period.

But now that you say it, Android is very much a full OS. It's not a Linux Desktop, but it is a full OS. And televisions running Android are called "smart TVs", precisely because they run a full OS instead of a minimal firmware like they used to.

Google is working on bringing Android to the Desktop, and Samsung already does it. As in: you plug your smartphone into a docking station and it is suddenly a Desktop computer.