They're talking about MTP, which is supported by every modern (and old) Android device AFAIK. It's not exactly a USB Mass Storage device, but as long as you're not on a Mac, it behaves basically the same as one.
Ah, I was mistaken. I thought they were saying that the reason Apple supports MTP (as opposed to UMS) is not that they want to make iPhones look good, but for some other unspecified reason (which I assumed was patent licensing). But they were actually saying that Apple does not even support MTP.
