Whoa, the first tablet-enabled Facebook app may land on HP's TouchPad and not the iPad. According to a rumor from TechCrunch, Facebook's first big-screen app will appear on the WebOS tablet which lands later this week. Of course, the iPad app could land in the next few days, but it's looking like WebOS is the darling of Facebook this week.

Update: Everyone can go home. False Alarm. Facebook confirmed that the Facebook app was designed by HP for its tablets. [TechCrunch]