I saw this in my inbox and got excited. This really looked like some quality work. And I wasn't wrong.
This is really something. Probably the best iPod Nano (5G) icon that I've seen so far.
I don't have much to work with here. The angle looks good. The shine and gloss look almost photographic. The icons are also high quality. Colors are right on mark too.
I do miss a shot of the spring board but not much you could've done there. I would also include a "off" icon with a black screen. Or, if you don't want to do that, you could include a *.PSD or *.AI of your work but I get the feeling you didn't for a reason.
The other thing is the USB slot. While it is visible, it feels like a hole in a wall. There's nothing there and it looks like it's made of plastic. I would add some connector pins and a metallic sheen for a slightly more realistic affect.
Once again: high quality, nice perspective, beautiful colors, and a great realistic effect.