Nate Barham describes iOS 7 as layered glass:
“The best developers will see iOS as an operational model, not a visual one. Imagine a Tapbots app that, instead of removing the cute ‘I’m a twitter robot in your phone!’ aesthetic, doubles down on it. Zooming metal plates, ratcheting gears not shadowed from without but appearing from within the device, only now it isn’t a robot-esque layer over the stock controls, the UI becomes the character that the developer envisions—even more so than it has ever done before.”
I really like this post, but I’m not totally sold on the paragraph quoted above. Done right, it could be brilliant. But this is a very difficult thing to pull off, keeping the playful spirit of Tweetbot with a lighter, minimalist iOS 7 UI.
And related, if you missed Christa Mrgan’s recent Macworld essay, she also covers how iOS 7 will use depth and motion to switch from “faux 3D to real 2.5D”, with an example from Adobe’s After Effects. Makes me wonder if designers will need new prototyping tools.