While a simple hack temporarily allowed users to preview what is expected to be Facebook's official iPad application, the social networking site has since blocked users from logging in with the unreleased software.



From Apple Insider:

Since the Facebook-for-iPad tweak gained considerable attention, the social networking site has apparently blocked new users, and made it so certain features do not work for those who have already implemented the hack. For example, notifications are said to be acting strangely or not functioning at all.

Earlier this week, it was discovered that a native version of the Facebook application was hidden in the latest update to the iPhone application available on the App Store. By making slight modifications, users were able to unlock the concealed software that was mostly written in HTML 5.

  Facebook blocks access to its hidden, unreleased iPad application