There has been, to an extent, with other Apple events. The 'Let's talk iPhone' event [1] showed 4 app icons which basically said the date, time, location and th

There has been, to an extent, with other Apple events. The 'Let's talk iPhone' event [1] showed 4 app icons which basically said the date, time, location and the fact that it was to do with the phone itself. [1]: http://arstechnica.com/apple/2011/09/apple-sends-invites-for-october-2011-event-lets-talk-iphone/ http://arstechnica.com/apple/2011/09/apple-sends-invites-for...