we need to design the next gen mouse to fit the next gen tech, the headerbar. as a very wise gnome dev put it...
if there is a reason to use Linux, it's the headerbar concept. If you're not familiar with this, its a combined titlebar and menubar that GNOME uses on most of its core apps. It saves space for the actual content of the app to use and forces devs to focus on the core important pieces of their application when designing an interface. It's been copied in so many other OSes, but I feel only Linux users get the true, primal headerbar experience.
There's a user on DeviantArt I follow who does nothing but headerbar concept art, and I can say with certainty it truly shows the power of this amazing technology and its impact on society as a whole. We can do a lot with headerbars, and if we use them correctly, they can do a lot for us. too.
Why, my disabled wife wouldn't be able to use the computer to post her fanart if it wasn't for the simplified design of the GNOME Web browser, Epiphany. She's always found Chrome and Firefox's interfaces to be too unyieldy to use as a onehanded woman.
I hope I've done some good here, and please try GNOME!