Who remembers the Nike+ iPod Pedometer? Went in your shoe under the insole and connected to your iPod via a separate 30-pin dongle. : r/RunningShoeGeeks
Nike Chip GS | Walmart Canada
TECH: iPod in Nike running shoes infographic
Review: Nike iPod shoes | WIRED
NIKE+ Plus ipod Sport Shoe Kit Sensor Wireless Kit MA365LL/F APPLE iPOD NOB | eBay
Create Your Own Nike+ (Nike Plus) Sensor Hole in Your Running Shoes : 4 Steps - Instructables