On the other hand it looks cool.
I'm probably the only one who feels the same way about hidden tooltray icons, too, but I usually expose them all on Windows.
Sorry, but I think you have to go a few steps further if you really want to seamlessly eliminate the click (which begs the question: why?).
The UI was annoying - the same UI that I've run into for the new Sims game - an over-reliance on mouse-over events, popping menus in and out of existence based on minute, often accidental motion. You have no idea how hard it is to, say, buy a bed and choose the wood finish for your Sim, just because the UI sucks.
...which I consider annoying eye-candy. Eye candy that melt and drips uncontrollably for that matter. For me the reaction is more like the other who complained of motion sickness. For this user, please leave menu bars static (unless you're expanding content: like drop-down or slide-out menus). I'd rather have flashing, hopping ads in my peripheral vision (which I can tune out), that menus zipping around like eye-floaters.
[Sorry, maybe you caught me in a bad mood, but my mood tends to become bad when purposeless complexity (especially moving) intrudes.]