Wow! Just wow! The interface looks gorgeous, both the UI and the UX. It will take some getting used to, and yes, your mom and grandpa will call you (if they can find the Phone app), but I’m really looking forward to it. Apple has really kept their promise, and Jony Ive has outdone himself.
Highlights for me: new today view in Notification Center, NC sync, new multitasking, Control Center and the expanded folders (no longer Games 1, Games 2 and Games 3 folders). Shared Photo Stream is also something the look forward to, since I’m on my way to switching my entire family to iPhone (mom, sis, if your reading this, you two are next).
I had my doubts about the icons but, after a good night sleep, even those are starting to appeal to me.