The second-generation iPod Touch (marketed as "the new iPod touch" and colloquially known as the iPod Touch 2G or iPod Touch 2) is a multi-touch mobile device that was designed and marketed by Apple Inc. with a touchscreen-based user interface. The successor to the 1st-generation iPod Touch, it was unveiled and released at Apple's media event on September 9, 2008. It supports up to iOS 4.2.1, which was released on November 22, 2010.^[2]

The second-generation iPod Touch was sold in 8 GB, 16 GB, and 32 GB models. Two revisions of the device exist, with the first revision having a BootROM that was exploitable with 24kPwn and a larger device capacity label on the back. On September 9, 2009, Apple introduced a revised version of the second-generation iPod touch under the MC model name, which was only available in an 8 GB variant. It featured a newer BootROM version which patched the 24kPwn BootROM exploit and has a smaller device capacity label similar to that of the third-generation iPod touch.^[3]

It originally shipped with iPhone OS 2 and fully supports iPhone OS 3 but has limited support for iOS 4 and did not receive support for home screen wallpapers and multitasking, but unlike the iPhone 3G, it did have support for the Game Center.^[4] iOS 4.2.1 is the last iOS version supported on this iPod touch model.