I've been using this for awhile with iPod touch, I have to say, this is what iOS 7 should've felt like on release days.
But I imagine the thousands, maybe millions of feedback & diagnostics data from the 7.0.x is required to get to 7.1.
Not really. 7.1 exhibits such architectural changes as would probably have been laid down already back in the summer, during 7.0.X public beta releases period as the performance and other deficiencies of the 7.0 architecture became, at latest, evident, as well as the fact that no amount of small bug fixing or code tweaking would amend the fundamental flaws in the design. 7.1 is all about architecture, which:
Battery life is better for me, also some heavier games that have performance issues like stuttering with 7.0.x are now running better = more enjoyable.
attests to.
Clearly, the first 7.0 software design was quite f**ked up, either because it was put together too fast and under too great a time pressure after Forstall's departure, or because insufficient talent was alloted to the design work. 7.1 is what 7.0 should have been. Given the Maps fiasco, iOS 7.0 is already a second corroboration to the new company principle where schedules now triumph over end-user visible quality. I do not comment here whether that is good or bad, but it does seem to bring in dough, as both releases have only furthered Apple's financial success, namely, by iOS 7's being pivotal in 5S, 5C and the new iPad line-ups' marketing.