Windows 7 most popular feature so far is calculator?

I've been reading a bit today about the Windows 7 screenshots that were released today.  Doesn't look much different than Vista.  yawn.  Seems like the most popular feature to more than some is the new calculator look...with history.  The other is the "ribbon" in Paint and Notepad.

Is this really what people find most important in an OS?  How about stability, efficiency, reliability, compatibility, speed or ease of use?!  And why aren't people upset over the fact that Microsoft will probably force it's lemmings to upgrade (ie $$$$$$$$$) to the new OS 6 months after release...AGAIN!?