I've been DYING for a new MP3 player since my last one got stolen that was equal to or superior than the ipod but wasn't the ipod. Apparently the Microsoft Zune matches that description. For me, at least.
http://www.gamestop.com/product.asp?product%5Fid=080001
Being released just a few days from now.
If you just want a nano, get a Sandisk Sansa E200 series. It's basically get all teh features of the iPod, and more. And it looks better. It's also got a MicroSD slot to expand storage later.
I would had I wanted a nano. Sadly my music collection exceeds a mere flash drive's capacity and therefore requires an option from one of the big boy hard drives.
If you get it, give a report on how much it sucks or rocks, because I'm actually interested in how good it is.