Apple dropped support for AirPrint in iOS 4.2 on the iPod touch 2G. When Apple just released AirPrint on September 15th, the second-generation iPod touch was listed as a compatible device for the service, but only two days later the company dropped support and modified the press release to note support for only the third- and fourth-generation iPod touch.

Original text: "AirPrint will work with iPad, iPhone 4, iPhone 3GS and iPod touch (second generation and later)."

Modified text: "AirPrint will work with iPad, iPhone 4, iPhone 3GS and iPod touch (third generation and later)."