No one has leaked anything yet, but Engadget did come across some signage that was put up a few days early. It shows an ebook reader with a color screen and what I think is an Android smartphone.
Engadget is calling the second item a tablet, but the dimensions are off. Look at the third photo. The camera aperture is too big for it to have a screen larger than 5", and the buttons on the side are also sized about right for a phone.
Now, this new Polaroid device might be like the Samsung Galaxy Player, which is a smartphone minus the phone. But like the Player, the Polaroid is only going to have a 4" or 5" screen.