android app

The project is quite simple. It's about writing an app for android which would be running all the time. The app should run in the OS such a small banner appears all the time in the desktop. The banner would show the addvertisements that admob provides. In this way I can use my phone and get paid for each click I do on the banner. I know is a simple app to do, but I do not have knowledge in android, altough I could develop such app in linux in a single day, so difficult to trick me. Looking forward to hear from you.