iOS 6 was about integration and design.
I have noticed after watching the keynote that iOS 6 was all about integrating things into ios. They partnered with many services and made everything feel for integrated. Instead of jumping app to app apple has created a more connected iOS. Posting on Facebook or twitter from anywhere. Siri being able to open any app and use different functions like yelp, opentable and all. Also they redesigned apps and changed some themes. With this i am excited and can't wait for ios 6.