Fitness Makeover Day 13: walking the neighborhood.

A week ago I discovered Cardio Trainer, a really cool Android app.  It uses GPS to measure just how far I'm walking.  Yesterday, I walked 46 minutes.  The device tracked my route (I could watch it), allegedly burned 216 calories (I don't see how when I never entered my weight).  I walked 3.4 km and had an average speed of 4.5 km/hr.  When I got home I did a quick bodyweight workout in a 21-15-9:

• modified dips
• situps 
• modified push ups