I feel like everything is even faster on iPhone5 , there is an improvement with scrolling .. I noticed that they fixed the bug of fast scrolling , and the new music controls are cool ...
Its a cool thing overall but Come on Apple we need some serious stuff before iOS7 , I mean you all remember how amazing it was when they released 4.2.1 It took safari to a whole new level and I remember iPhone 4 killed all dual core phones of that time in benchmarks with this huge update ..
I dont really think we will see too much till iOS 7 but i do think that they will release iOS 7 before fall. iOS 6.2 might bring some good features aswell