Skobbler built a successful business around open map data from OpenStreetMap. They created a unique navigation app that became one of the top selling paid iPhone apps in Germany. While open data comes with quality issues and strong competition, Skobbler found success by creating a unique product, being flexible in monetization, respecting the open data community, building their brand, and educating governments about the benefits of open data. The key is combining open data with a unique product to create value for users and a viable business model.