Actually, no. I don't think Apple makes a case like that for any other ipod. They have a leather case for the other ipods but nothing like the nano tubes. Try iskin.com. They make some pretty sweet cases.
for those who have ordered/plan on ordering the nanotubes, which color do you think you'll be using the most? It's cool that they have a white-ish one...so just in case I don't feel like having black all the time, I can always go back to the original iPod color