Chicago Grid | What to know before upgrading to iOS 7

Excerpt from an Andy Ihnatko upgrade overview

"These are just sensible steps to take before any major OS update. But iOS 7 isn’t just another update: it’s as major as the first release of the iPhone and as such, there are a couple of new things to keep in mind.
First: you’re going to be a little lost at first.
Many functions and features of iOS are so familiar to you my now that when you use them, all of the associated electrical activity in your brain is happening inside the brainstem. It’s down to muscle memory.
Well, Apple has moved a lot of things around. Even the things they’ve kept in place look different.
Be patient.
It’s fine."

Chicago Grid | What to know before upgrading to iOS 7