Facebook’s iPad app may be hidden inside of its new iPhone app. (ROBERT GALBRAITH/REUTERS)

According to the report, the tablet-optimized app is hidden in the code for the company’s latest update to its iPhone app. The app has a left-hand navigation system and automatically shows a list of a user’s friends for chat when he or she flips the iPad. Facebook’s iPad app is also supposed to have an excellent photo viewer, which TechCrunch’s MG Siegler said looks like the iPad’s native photo app.

The site said it has confirmed with a source that the HTML5 app is the one that Facebook has been developing.

Last month, the New York Times reported that Facebook was set to release its app “in the coming weeks.”

Other tablet-optimized versions of Facebook have been released for the BlackBerry PlayBook and the HP TouchPad, but the iPad app would be the first tablet program actually built and developed by the social network.

Twitter user @AeroEchelon was the first to note the accessibility of the iPad app and posted directions on how to use it on his Twitter feed.

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