RunKeeper Pro

RunKeeper is a Nike+ app that works with your iPhone. It tracks your runs using the iPhone's GPS radio, and then displays your jogging or walking pace, your distance, and your time. It can even spit out a nice bar graph displaying your speed over a given time period. After your run is over, you can log on to http://www.runkeeper.com/ to see your run displayed on a Google map. What didn't RunKeeper's developers think of?

Note: This link takes you to the vendor's site. From there, you can follow the link to the iTunes App Store, where you can download the latest version of the software.

--Mark Sullivan