Mail's new bag
Even though mail from multiple accounts still looks the same in the inbox, the app does something new that heavy e-mail users will appreciate: Swiping your finger right to left over any e-mail in the inbox presents you options for sending, storing, and deleting it.
Apple replaced the virtual keypad's trademark matrix of square buttons with a more modern-looking, slightly smaller array of round buttons, which I found harder to see and possibly harder to use. Under this arrangement, the Call button at the bottom was widened, which is good. But accommodating its wider girth meant pushing the Add Contacts and Delete keys to the top of the screen and making them much smaller and harder to reach.
The phone number's black-colored font on a white background doesn't stand out as well as the iOS 6 version's, which was a bolder, white-colored font knocked out of a dark blue background. The keypad for PIN numbers to unlock your phone has the same round buttons, but they're easier to see because they're white against a dark background.
Clever call options
Busy bodies will appreciate the new display for incoming calls, which presents you with the option to turn down a call with a preset or custom text message, and to set a reminder to call that person back. These options were available before, but now they conveniently appear as the call comes in. Do Not Disturb can now be set to “Always” instead of only when the screen is locked.
Great new camera
The camera's new interface and controls are much better than before. Now you can take a burst of still shots by leaving your finger on the shutter key (old news for Android users). The still camera has nine new filter options for photos (more old news for Android users), though they all look very similar. But at least you can undo or change these enhancements after you apply them.
Sliding your finger up or down the viewfinder quickly moves you into four possible modes: Video, Photo, Square (better shape for pics destined for social networks), and Pano (rama). Switching between the video and still camera modes takes noticeably less time in iOS 7 than it did with iOS 6.
The photo gallery in iOS 7 groups pictures and video clips—whether taken with the camera or downloaded from the Web—in the iPhone's gallery according to where (via GPS) and when they were taken. This capability is similar to the Events feature on the HTC One. For iPhone users who may find this type of collation creepy, Apple made it very easy to switch to the conventional Album view.