Every time I’ve visited the App Store in the last few weeks, I’ve seen the same game at the top of the most popular paid apps list: “Angry Birds.” Reluctant to presume humanity generally skews toward anything other than the lowest common denominator, I wrote the game off as some scatological exercise in dive-bombing techniques. This week I finally broke and paid it a bit of attention. It’s the top paid app in over two dozen countries, it’s a buck, it’s received over 50,000 five-star reviews, and the icon doesn’t look like the worst slap-dash clip-art job I’ve ever seen.