IPod Touch iPod Touches can be jailbroken using tools such as PwnageTool, redsn0w, Absinthe, both versions of evasi0n, and Pangu. Apple's warranty statement implies that an iPod Touch after jailbreaking or other modification made by unofficial means is not covered by Apple's warranty. Jailbreaking is a violation of the Terms and Conditions for using iOS. The jailbreaking process can normally be undone by performing a restore through iTunes. The iPod Touch is generally similar to the iPhone. Compared to a same-generation iPhone, an iPod Touch is thinner, lighter and less expensive, while lacking some hardware and software features. Steve Jobs once referred
IPhone 3GS more favorable reviews mainly because it comes pre-installed with iOS 4. Jason Snell of Macworld praised the iPhone 3GS, saying that "the device's internal changes shines in the iOS 4 update, making the iPhone 3GS a worthwhile upgrade compared to its predecessor although a little too late compared to the iPhone 4." TIPB stated that "aside from hardware specific features like FaceTime, Retina Display, and gyroscope support, the bottom line is iPhone 3GS users are getting the same software that makes the iPhone 4 great." Shortly after the release of the iPhone 3GS, some users reported overheating of the device