Out today on the App Store, you can now edit comments and posts from the new version of Facebook for iOS (for posts that contain photos or locations from Instagram, you can only edit the text part of the status update). When leaving comments, you can also attach photos from your device (a feature that was added to the website a while back); at last, Facebook is providing easier access to privacy settings from mobile devices (tap the More tab on iPhone, then tap the lock icon next to your name).

You can download Facebook 6.6 here.