I also started using a fun app on some of my bike rides and walks, called, MapMyWalk or www.mapmywalk.com. It uses the GPS unit on my phone and tracks my route, gives me speeds and elevation and of course lets me post it to Twitter or Facebook. Tonight I went on a ride with my daughter: (Jessica's Bike Ride) or a few days ago, I walked to work with Cathy (Walking to School with Cathy). Again, it's been very helpful to have the support of my family and to share this experience with them. They in turn have benefited and are making some changes too!