The Nielsen Norman Group (NN/g), a user experience firm founded by usability gurus Jakob Nielsen and Don Norman, has appraised iOS 7, and the verdict isn’t great. “Early experience with applications redesigned for iOS 7 is fairly negative: several have worse usability than their iOS 6 versions.” In particular, NN/g cites action labels that are indistinguishable from content, the confusing date picker, confusing swipe actions (for example, activating Notification Center when you wanted Spotlight), and the redesign of many icons, of which NN/g said, “Apple has demolished millions of hours of user learning by changing the icons.” However, NN/g said that iOS 7’s design isn’t fatally flawed, and praised how controls are hidden in Safari, global font size controls, and the streamlined Settings app.follow link
Springy Dock Tricks
If you drag a file and hover over Dock icons, various useful things happen which are similar to Finder springing. If it's a window, the window un-minimizes from the Dock. If it's a stack, the corresponding folder in the Finder opens. If it's the Finder, it brings the Finder to the foreground and opens a window if one doesn't exist already. But the coolest (and most hidden) springing trick is if you hover over an application and press the Space bar, the application comes to the foreground. This is great for things like grabbing a file from somewhere to drop into a Mail composition window that's otherwise hidden. Grab the file you want, hover over the Mail icon, press the Space bar, and Mail comes to the front for you to drop the file into the compose window. Be sure that Spring-Loaded Folders and Windows is enabled in the Finder Preferences window.
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Nielsen Norman Group Slams iOS 7