Do you put a smiley photo of yourself on your app's About page?
Travis: There is some research to show that a "real world feel" is a critical component of a website (from the "What makes a website credible" study from a few years back.  Having a picture of you will go some ways towards doing that.  I put my pic on my website.If you do this, please make sure to put a good pic up -- no self-taken camera phone bluriness, please.  Remember, you want to personalize the experience but still seem professional.