When it comes to quick things, like instantly evaluating a logo, the reptilian brain takes over and decides before there's ever time to think about it.
It's both! It's recently started to appear on its own, without the text, in some promo material, and in that context it's just referred to as the "Amazon smile."
“Earth biggest book store” that is typical of startup era: appear bigger than you really are.
I’m glad they parted from the logo with the road; was that a road?