The Shoe Pouch by Grantwood Technology, LLC to allows runners to use the Nike+iPod Sport Kit with any type of shoe. This tiny colorful accessory is the 2nd most selling item in the Apparel category on Amazon.com.

Granted, Apparel is not the hottest selling category on Amazon. It still amazes me that there are apparently tons of runners out there that use the Nike+iPod gadget for their workout. And lots of those do not necessarily want to wear Nike shoes.
In the product description the company claims to have already sold over 25,000 shoe pouches.

This accessory holds the Nike+iPod sensor in a tight neoprene pouch which attaches to the laces at four points.

The Shoe Pouch for Nike+iPod sells for $6.99 on Amazon.com and comes in 8 colors.