Well, at least 1,000. That’s right. According to my record keeping, Slider Calc , the slickest iPhone mortgage calculator in the app store, is a worldwide smash hit with just about 1,000 happy customers out there. Keep on sliding those numbers around, people. Add to that the sleeper hit of 2009, a little app called “Meat Clock”, which has sold well into the dozens and now we are rolling in cash! Easy street, here I come. If you read stories like this one about Steve Demeter or the story about iShoot developer Ethan Nicholas who claims to have maid $250,000 in two months, it is easy to see that I should have about 2 million downloads by Christmas. I better start preparing for the amazing lifestyle changes that are coming my way!