I don't know if abandon is the right word, but after a while (several years) it will become obsolete. I have a 2nd generation iPod Touch iOS 4.3.1 is apparently the final version of iOS for this device. I also have a 1st generation iPod Touch and iOS 3.3 is the final version for that device. They both still work, but the old hardware can not take full advantage of the iOS updates.