David had an idea for an iPhone app called iSoBusy that simulates phone calls to help people escape awkward social situations. He worked with his friend John to develop the app. After overcoming rejections from Apple's app review and doing extensive marketing, their app was released and began earning them sales and profits. They now want to take the app to the next level by adding in-app purchases, using advertising networks, and expanding it globally to increase its user base and revenues further.