Wireless electricity (sans the cord), has been around for quite awhile, dating back to 1890 when Nikola Tesla unleashed power for the first time. However I wouldn’t exactly call his wireless electricity safe for home use; unless you want a really REALLY dark tan.

The iPhone 4 / iPad 2 have enhanced camera functionality (FYI: the predecessor models had only one camera, while the new devices now actually have two: forward facing and rear facing).  The new cameras also have functionalities the old one did not, like:

Camera Flash
Open the Camera app; there’s a flash icon at the top left of the screen (looks like a lightning bolt).