Actually, I developed Columbus with the intention of making it commercial, either through Ovi or my own site, I was going to release it before Christmas as I needed the money. But then I decided I'd release it FOSS, so I did. I added the "Donate" button in the latest release. I'm not a rich man, I'm doing the project in my own time because I enjoy it. I'm currently looking for work so I have a lot of time I can devote to MeeGo and Maemo development, which I'm doing, but I'm also looking for work, because I need money and with 0 donations currently it's obviously not a viable income model.