It only took a month but Facebook has finally released Version 4.1.1 of their iPad app. The update brings Retina display graphics for the new iPad, a few new features and a few bug fixes. You should've already received an update notification if you already have the Facebook application installed. If not check the Updates section by clicking your Applications icon.
This update also applies to the iPhone. The Facebook application is compatible with the iPhone, iPod touch, and iPad. It requires iOS 4.0 or later.