If it's running PC software, its a damn PC. Once they get an *actual* Steambox up and running, which uses its own operating system and such, then you can actually make an argument for divergent naming. As long as its using Windows and running any common PC software... its a PC... is that really such a hard determination? I can and do hook my laptop up to a TV and play on it with a gamepad... it's still a laptop PC.
_DeadlyFred_'s comments