Mark Zuckerberg ruffled some fanboy feathers when he said the iPad "isn't mobile" enough to deserve a dedicated Facebook app. But now it's U-turn time. TechCrunch just revealed that not only has Facebook created a fully-fledged iPad app, they've even released it -- albeit in secret. The code lies buried in yesterday's update to the iPhone app and it's entirely executable on jailbroken devices. What's the software like? Well, TechCrunch reckons the left-sided navigation system and use of overlay menus is "great," as is the ability to chat with buddies while simultaneously doing other Facebook tasks in landscape mode. However, it surely won't be long before we can make our own minds up.