Looks Change With Background

When you change the back­ground of the home screen, elements of the iOS system will change to match the colors.

This includes the dialer and other parts of iOS 7.

Panoramic Image

iOS 7 also has a hidden easter egg which only works on the iPad 3, so if you have a iPad 3 or later running iOS 7 you can head over to:

Go to: Settings > Brightness and Wall­paper > Change Background and choose any panoramic image to set it as a lock screen wallpaper.

Then the image moves slightly around

Parallax Effect

The parallax effect creates a sense of dimension by putting your Home screen icons onto a layer separate from your background image.

To stop this effect just go to: Setting > General > Accessibility > Reduce Motion > turn Reduce Motion OFF

Clock Shows Right Time

The iOS 7 Clock icon shows the current time, complete with moving second hand, so you can see the clock ticking by the second.

Bounce

Notification Center, like all of iOS 7, is built on a new physics engine so it behaves more like a real–world object.

It has velocity and collision detection, so if you slam it down, it’ll bounce!

Smart Calendar

The Calendar Icon shows the right date