Remember it's beta
Parallax - interesting, fun, but fluff - how the app badge notifications are on another plane- interesting, neat, but not necessary.
My problem, and realizing it's still in beta, is the text on the app and folder labels can be hard to read against a light background. A lot of light colored text elements are harder to read against the lighter backgrounds. They really need to fix that- not everyone has the best vision.
I do like how the labels and text elements will switch to black with certain backgrounds which does help. Hopefully that logic gets refined.
The new icons are horrible, they look like late 1950's euro modernism/futurism. The color pallet is way to pastel(reminders, passbook, notes, safari, settings, contacts -so lifeless and dull. Game Center doesn't seem to fit in at all., to stark. Actually with parallax, they could have made a really nice 3D effect to the stock icons that would have popped.
I think the icons helped set iOS apart. Making them look more like the competition makes Apple's feel less unique, IMO.
Oh well, looking forward to watching how Apple refines it over the next several months.
Feature wise, lots of nice and much needed improvements- control center was a MUST.