Well there are rumors from Folks apple.pro they posted the pics of back of iPod Nano 7th Gen clearifying that it will have an Camera.

If you are up to date on your Apple history, you’ll recall that the fifth-gen iPod Nano had a camera for taking video (not still pics), but with the smaller form update last September, Apple axed the cam. With Apple.pro’s proven track record (it leaked the 6G redesign way before the unveil). Fitting a camerainto the Nano’s already tiny body is already squeezing all of the components extremely tight.