What? It's an upgraded Windows 7 with an option of the Metro UI
I disagree. Everyone wanted ipads, touches, android tablets, etc. So they are listening and giving you Windows 7 with an option to go into the Metro UI. You don't even have to use Metro- and the Start menu was provem pointless through polls... we just are still looking for it to feel comfortable to what we are used to.
On top of that Windows 8 also now works with the ARM architecture. Windows tablets, phones and touchscreens just got faster and much better, and Windows 7 just got some big advancements if you choose to use them- in the form of Win 8.