Apple launch events are often thematic and a lot of the magic begins with the invitation. These serve to tease and entice invited members of the press and analysts and drop hints about what is coming. The invitations themselves are often dissected and parsed ad nauseam as writers try to extract any hidden clue or Easter egg in the wording or artwork. In the case of the most recent on for September 12, the message is pretty clear. Something 5 is coming.