"There's no in-app upgrade option." It's possible to add a link in your app to the full version, such that when it's clicked, the market page will open and the

"There's no in-app upgrade option." It's possible to add a link in your app to the full version, such that when it's clicked, the market page will open and the user can just click 'purchase'. It's not exactly in-app, but it works pretty well.