Aside from the design issues of layout and information density, for me the new store doesn't work half the time, I click links for reviews and nothing happens, or I click more reviews (because its shown me just one for some reason) and again nothing. Without some clue as to what is clickable (this is basic design stuff) it's hard to know what is supposed to work and what isn't. I'm sure the store will go through some rapid evolution in the next few weeks and there are likely some very stressed devs down in Cupertino right now, but for the moment this just looks like that were nowhere near ready to ship iOS 6. Of my dozen or so friends that upgraded their iPhones about half of them had stalled upgrades and needed to hard reset at least once.