I've seen commercials about a new iPod coming out..I believe it's the iPod nano? I have the "last year" version of the nano. It's the real small, square version that shows video too and it's a light blue. So what's really different about the new nano? Is it just the shape and more color choices? Cause as far as I can tell, the new 8GB holds the same amount of songs and so on. What would be a persons reason to go to this new version if you already have the "last year" version of the nano, which seems almost exactly the same?