Hmm...Seven transformation pack? looks interesting.
But it could be very hard for Windows X, even they use their concepts, the whole GUI of Vienna looks farther from the previous version of Windows. I think Windows X will work for it if the Microsoft show the real appearance and GUI of Vienna, I think it could be the next project of Windows X.
booyahcomputers has a point on it, well we will wait for it.
BTW I think the better name for seven transformation pack is "Vienna Transfromation Pack" hehe...