This is the most unlikely but deserving post to spend all day atop HN. Great, great piece of software, deserving market, it's just great. Our company was originally started to serve my co-founders church as well believe it or not (the church was worried that credit card fees were usurious and so he tried to build a solution). I hope you do commercialize it purely because it will spread and serve more people that way - doesn't mean you need to try to make a lot of money on it, but some level of commercializing helps sustain and spread a project like this.