Runcast 10 - iPhone GPS Running Apps/Ultramarathons

Marathoner Kenny Yum talks about GPS running apps for the iPhone and how they stand against the Garmin GPS watch. In the second part, Natalie dips into ultra marathons, at least theoretically (for now).



Links:
iMapmyrun
Runkeeper
Garmin Running watches
International Association of Ultrarunners
Comrades Ultramarathon 89 km (56 mls)
Wikipedia: Comrades Marathon