I just updated to 2.6.2 a couple days ago, and I don’t notice anything different. So today I was looking at the WP Development Blog (read: I subscribe to the feed). They were talking about the release for 2.7 in November and they have a Survey up for users to take. They are hoping to get feedback about Navigation and usability. I thought this was a fabulous idea and when to give my input. Fingers crossed 2.7 is brilliant!
P.S. WP 2.6.2 was mostly security updates.