If you wake up in the middle of the night and want to use your iPhone as a light then this is probably one of the simplest native iPhone application developed for the iPhone. This native iPhone application is aptly called Flashlight.
iPhone developer Brent Jensen developed Flashlight. Your iPhone’s brightness can be increased by Flashlight, it displays a full screen white rectangle (thus making it a “flashlight”). To adjust its brightness, you can slide your finger up and down. In case you double tap it shall result in exiting the iPhone app. By just tapping in the upper left corner you can quickly go to its lowest brightness, and by tapping in the bottom right corner you can quickly go back to its full brightness.
To use this native iPhone game you will need a jailbroken iPhone. One of these iPhone software can be checked to jailbreak your iPhone: ZiPhone 3.0 – New version of Popular tool to JailBreak and Unlock iPhone or iLiberty: Easy to use Application to JailBreak, Activate and Unlock iPhone. As part of the jailbreaking process ZiPhone or Liberty will install the Installer App.
After installing the Installer App on your iPhone, the Flashlight is located in the “All Packages” folder and the program to install is chosen. Then the iPhone is allowed to reboot and then go to the Home screen to launch the program, and then use your iPhone as a Flashlight.