FYI. Some friends were hassled by game requests. So I commented with this: Would this help you? http://m.imore.com/how-block-facebook-game-requests-iphone-and-ipad
I use an android and I disabled app invite notifications under app settings and account settings.
On air now: ‘Déjà Vu, Season 2’ - France and Europe Extended till May 2010! : Singing at Holiday Inn Atrium - Singapore Just added to Music Playlist: 1 Origin