Yesterday, Apple announced that it will make an announcement on September 10th. Apple didn't actually say what the announcement is for — the invitation to select journalists simply states "This should brighten everyone's day" — but we all know that it will be the new iPhone. According to Jim Dalrymple of The Loop, the invitation includes this picture:
The pictures and/or messages that accompany invitations to new iPhone announcements typically include a clue to a new feature of the iPhone. In September of 2011, the invitation said "Let's talk iPhone" and the new feature of the iPhone 4S was Siri, giving us the ability to talk to an iPhone. In September of 2012, the picture on the invitation showed the number 12 with a shadow, but the shadow was not of the number 12 but instead a 5, indicating that the next iPhone would be called the iPhone 5.
There are rumors that the next iPhone — the iPhone 5S? — will also come in gold in addition to the black and white models. There is also a rumor that Apple will simultaneously release a lower-priced iPhone that will come in many different colors, perhaps called the iPhone 5C. So perhaps circles with different colors are a nod to the new colors. The message about brightening our day could also be a reference to bright colors, or it could be a reference to lower-cost iPhones, or it could be a reference to iOS 7, the new operating system that I expect to debut along with the new iPhone(s) which has a brighter appearance.
There are also rumors that the next iPhone will incorporate a fingerprint scanner for additional security. I suspect it will also be faster and have a better camera, but we'll see.
I also expect that Apple will announce new iPads at some point before the holiday buying season, but as to whether new iPads will be announced on September 10, I have no idea. Many other websites predict that the new iPad announcement will be later athis year.
The announcement will be at 10 Pacific / 1 Eastern and will occur at Apple's campus in Cupertino, CA. Sometimes Apple provides a live video stream of events like this, or you can probably just put your ears or eyes close to any part of the Internet on September 10 and you'll learn what Apple is announcing.