The new music device from Apple is the "iPod Shuffle," not the "iPod shuffle." That would be some silly dance you do while listening to your iPod.
I know you know I feel this way, but it bears repeating: Proper nouns get a capital letter. It's the Shuffle. (And iPod gets away with keeping their I lowercase at the start of the word because it has a cap letter near the beginning, still indicating that it's a proper noun. Consider Leonardo da Vinci's last name. And eBay.)