TechnoSlab

A tiny code push in the Facebook app for iPhone yesterday revealed something lurking under the surface in the code for the app for over a year: an iPad-specific version of the Facebook app, designed to run on the iPad's large display.

Now that it's been discovered, there are a number of ways to get to it, but all of them involve jailbreaking your iPad. All of the standard warnings about jailbreaking apply here: it'll void your warranty, and if there's a problem with your device, Apple will likely refuse to asisst. That said, after jailbreaking, you'll need to download iFile from the Cydia app store. With iFile and the latest version of the Facebook for iPhone app installed, follow these steps: Open iFile, and navigate to / var/mobile/applications directory Tap the settings gear and toggle "Application Names" to "On" Open the Facebook folder, then open Facebook.app Open the "info.plist" file and select "Property List Viewer" Select the "UIDeviceFamily" field It should be set to "1." Delete it, and type in "2" instead. Tap "Done." Reboot your iPad If everything went correctly, you'll have the iPad version of the Facebook app when you finish rebooting your device. Most people report the app is a little buggy, but it's a world better than the mobile web app or the stretched-out iPhone app. TechCrunch reports their sources confirm this hidden app is the same Facebook for iPad they're testing internally and plan to release, so if you're wary of jailbreaking and getting your hands dirty, Facebook will likely make the app official soon.

Source: Lifehacker

Update: the app has been blocked by facebook.