iOS jailbreaking is the process of removing the limitations on Apple devices running the iOS operating system through the use of software and hardware exploits – such devices include the iPhone, iPod touch, iPad etc. During the process of jailbreaking an iOS device, Cydia can be installed, which is similar to the App Store in that it will allow you to add many more applications such as games, networking applications, and productivity applications and so on.The difference is that apps installed via Cydia are unavailable through the official Apple App Store.
You may learn more here: http://en.wikipedia.org/wiki/IOS_jailbreaking
Jailbreaking itself does not harm your phone. The iPhone Dev-Team, Chronic-Dev Team and others try their jailbreaks on many iDevices before releasing them to make sure nothing bad will happen to the end users. So you can feel secure about that. Besides, you can restore the device in iTunes to erase the jailbreaking later. Jailbreak iOS device now!Tags: how to jailbreak , ikeymonitor jailbreak , jailbreak , jailbreak ipad , jailbreak iphone , jailbreak ipod touch , jailbreaking , what is jailbreak