Sure, there are similar products on the market, but the HEX iPod Nano watch band kicks up the functionality up a few notches. This product lets you use your brand new iPod Nano as a watch AND allows cross functionality with Nike+.
Basically, it’s a stylish watch band that has a port for a Nano and a Nike+ attachment. Nothing too fancy, but highly useful. The unit will be released in April 2011, so be on the lookout. No price has been announced yet but one would imagine it wouldn’t be too outlandish.