I guess you didn't see the articles about the ubuntu phone and unity going on TV's.I don't know why people compare Unity with Windows 8, Unity isn't a hybrid design. As for desktop friendliness, Unity might be a bit better, haven't touched it in a while, but on the desktop is suffers the same issues as Windows 8 as the apps used on a desktop tend not to be touch friendly.
where the heck did you think they thought up the name 'unity'. Its intention was a common interface experience on multiple devices from the onset.
Just because it doesn't function like a Windows 8 clone, doesn't mean it isn't trying to do the same thing the Metro UI is trying to do and be on multiple devices.