IPhone OS 2 available to the iPhone and iPod Touch. Prior to the public release of iPhone OS 2.0, Apple held a keynote event to announce the iPhone OS Software Development Kit ("SDK") to developers. The most notable feature of iPhone OS 2 was the App Store. Before this feature was introduced, the only way to install custom applications on the device was via jailbreaking, which is strongly discouraged and unsupported by Apple. There were 500 applications available for download at the launch of the App Store, though this amount has grown dramatically since then. Now, the App Store has more than 2
IPhone Dev Team the "modem firmware" version in the iPhone Settings app.) ultrasn0w 1.2.4 (and later) uses the same AT+XAPP command exploit found in the 05.13.04 baseband to update the iPhone 3GS's baseband to version 6.15.00 (found in the iPad 3G). redsn0w is a program which allows users to jailbreak their iPod touch, iPhone and iPad by using various exploits. The first version released was 0.7 to jailbreak iOS 3.0 on the original iPhone, iPhone 3G and iPod touch 1G/2G. It is updated frequently to jailbreak additional iOS versions. PwnageTool is an iPhone jailbreaking application for Mac OS X that creates custom iOS