Schwizer, tough break, if your app is free but you can leverage any advertising or charge for the app and get thousands of downloads, that $100 will seem like a bargain - if you don't understand the macroeconomics of app publication then maybe you should give up writing them
@back_by_demand ist almost impossible to get thousands of downloads with an app made without to know a programming language. Windows phone app studio is just for kids.
Well, Marius, this joker apparently knew how to write an App for WP7.5 so his coding knowledge doesn't appear to be the question, although now I am beginning to question both of your reading skills