I'm not actually sure why I'm doing this, but I suspect that you're trying to get me so riled up that I make a fatal error and end up in the banned bin. That said, if it looks like a tablet, then it's a tablet. What it can do is another thing, but it doesn't change the fact that it's a tablet as far as nomenclature is concerned.
A car is a car; the engineering configuration is ostensibly identical, only the design can vary. What it's designed to do and what it is capable of doing is a completely different issue.
A shoe is a shoe, the anatomical requirements are fundamentally similar, though the design can vary wildly. A shoe is primarily designed to enclose, protect and support the foot, but it's specific purpose and functionality can vary from fashion statement to safety component, with varying degrees of success (often depending on taste or design).
Let's compare the Surface Pro to shoes, that should be fun.