Apple said that a software update to iPad, iPhone and iPod Touch devices in November will let users wirelessly print photos, documents, or graphics.

A test version of the coming iOS 4.2 update released to software developers on Wednesday included an AirPrint feature that automatically finds Wi-Fi enabled printers on local networks and connects.

"iPad, iPhone and iPod touch users can simply tap to print their documents or photos wirelessly," said Apple senior vice president of worldwide product marketing Philip Schiller.

"AirPrint is Apple's powerful new printing architecture that matches the simplicity of iOS - no set up, no configuration, no printer drivers and no software to download."

The update addresses criticism by some that the California company's hot-selling iPad tablet computers lack ports for plugging in cables to connect with printers.