Here's yet another review of Apple's new iPod nano, this time it was conducted by Tom's Hardware Guide. Here's a short blurb from Frank's review:

This new iPod is so small and thin that it resembles a large credit card, and is available in either black or white. Because of its ultra-compact dimensions, in particular the extremely flat design, it fits into any pocket or sports jacket. Even a light summer suit works well, due to the minimal weight; it is precisely this criterion that is not always met by various competitors. Compared to the preceding iPod Mini, the five control keys on the iPod Nano are even smaller - but as if to compensate, there is now a color display featuring a 1.5" (38 mm) diagonal picture and 187x132 pixel resolution. Besides showing song titles and names, the display can also show photos, though this is of course not always entirely useful due to its size..



Link: Tom's Hardware Guide