If the iPods were on a TV show, the iPod Touch would definetly be the breakout character. It recently began to out-sell the Nano, making it one of the most popular portable media devices of all-time.
(iPod Classic is in the role of a single father living in San Francisco, the Nano and Touch are the two teenage siblings, and the Shuffle is the baby brother)
iPod Classic: Children! I have someone for you to meet! This your new adopted teenage brother, the iPod Touch!
(Laugh track goes "WOOOOOOOOOOOO!")
iPod Touch: It's a pleasure to meet you all!
iPod Nano: I don't want an older sibling! (starts crying and runs upstairs, and eats so much that it gets fat)
iPod Shuffle: I'm small and have no screen, but if you push down on my head, I can talk to you!
iPod Classic: Awww, he just said his first word!
(3 seasons later......)
iPod Classic: Wow iPod Touch, you're so awesome and cool that you were able to to turn the iPod Nano into a small piece of shit that can't even play videos! No wonder you're the most popular iPod!