iPodNN reports on a new Nike patent suggesting the company will be enhancing the Nike+ Ipod fitness options. Now the shoepod simply tracks pace and distance (based on your stride and time). New versions may include other sensors for heart rate, EKG, hydration (how do they measure that?) and perhaps GPS. There may be options for the device to interact with an iPhone or computer and show motivational video.

I lost my Garmin ForeRunner (GPS watch) last fall and have yet to replace it. My iPod shuffle is however my constant companion when I travel on public transportation or do long runs on my own. Anything small enough to clip to my hat for 3 hours of entertainment, and not be impacted by heat, cold, sweat and the odd drop on the floor, is ok by me.