IPod Touch (2nd generation)

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.

History
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.

Software
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. iOS 4.2.1 is the last iOS version supported on this iPod touch model.