RunKeeper utilizes the GPS in your iPhone 3G or 3GS to track and record your Running/Bicycling/Walking experience. Your data is uploaded to their webservice at RunKeeper.com, which presents your activities in a neat and polished interface. If this isn’t enough to keep up the motivation, you can even ask your friends to become part of your “Street Team” and share your running activities with monthly leads and shared statistics. Critics say this is better than Nike+ and we have to agree. Try the Free version Now. The Pro version is $9.99 but also totally worth it. Get your Run on.