iLounge posted a photo of one of the advertisements for the new iPod which will supposedly be introduced today at Apple's "One more thing" event.
The new posters show a new iPod model with a "larger display, approximately 2.5 to 2.6 inches diagonal". The headphone jack is also now off center.
Photo can be seen at iLounge. Mirrored here: New iPod Ad.
Update: More pictures posted. Photos from this flicker account from iLounge's publisher. Photos are of ads surrounding the Apple media event which takes place today.