Apple on Thursday officially confirmed what we already knew —that the iPhone 6 fall announcement event will take place on September 9th — by sending out a simple press invitation that featured the date of the event and a cryptic message that read “wish we could say more.” In addition to inviting the media to the highly anticipated iPhone event, Apple has also been doing something else, MacRumors reports, and that’s building some sort of giant structure for the iPhone 6 unveiling. FROM EARLIER: Here comes the iPhone 6: Apple sends invitations to September 9th event Apple is going to host the iPhone 6 announcement at the Flint Center for the Performing Arts at De Anza College in Cupertino, which is also