3.16 mile walk in 0:52:44

I found an app for my Windows 7 Phone that uses the GPS to track and map walks and runs and the like. I tried it out for the first time today, briskly walking 3.16 miles in 52 minutes and 44 seconds. The app even puts maps up on the internet displaying the route taken, as you can see below. (No, I didn't walk as erratically as the squiggly lines suggest; looks like the app needs some improvement.) Without factoring out stops at crosswalks, this is an average of about 3.6 mph, which at my weight burned approximately 463 calories. Combined with the weightlifting and 31+ flights of stairs climbed this morning, along with the Kinect Dance Central I'll likely play tonight, it'll have been a good day of exercise!