Wow, the amount of hate for the new UI...
I have to admit UI 2.7 is a welcomed breath of fresh air for me. At last, a real UI that looks great and actually makes sense! The previous UIs look oh, so dated... UI 2.6 was a pain to use. I also love the Quick Edit feature. I have the feeling that at last the developers have some heavyweights among their midst to help take WP to the next level.
I welcome the direction WP is taking and hope for more (not less, sorry to those who do not like changes) user friendly features that make site creation and maintenance easier.
One of which is: get rid of the login/register screen and make them available right on the front page (I know there are plugins available but what a pain everytime we get a new release) -- and please no dashboard/site admin for readers who subscribe to the site.