Errm, isn't there already a system for paid-for apps called Ovi store?

I dont' have an issue with paying for software which I am going to use, and where the software does what I want, and is of good quality ie. doesn't crash frequently, is attractive, and works without killing the battery in an hour or so..

I have bought licences for Gravity and BestProfiles on symbian, and Wayfinder, and Sygic on Maemo for example.