Quite a few things so far. It's not just because it's a
different GUI from what I'm used to either.  Too flat, ugly. The
screen is now full of nice looking 3D icons from the developers
mixed with the Fisher-Price look Apple has given their icons. It
looks like something for a kid's toy.  Hate the white type.
Making it bold helped but I had to change my Wallpaper to
something dark to be able to read everything.  Lack of a
noticeable division line between items, especially in Calendar.
The wasted space at the top when in portrait, and especially
landscape view, a lot of wasted white space, it lists the days
of the week, cutting off a lot of viewable screen space. Maybe
I'm missing something but where is weekly view now showing the
whole week rather than having to scroll sideways, like it is
here?  In Safari I like how it now goes full screen when you
start to scroll down, but you used to be able to pull down and
get the address bar, then touch the bottom of the address bar
and it would scroll the top, not any m