Your take (Score 1)

Ive seen suggestions for Hourly pay, Daily pay, and lump sum ammounts. Surprisingly I havent seen any suggestions for Profit sharing. Considering that this is your baby it wouldnt be out of line for you to ask for a percentage of the future earnings for this project. This would more than likely net you more than any other option. Besides its a quality control issue with that. 1. The better the product, the more users. 2. The more users the more people buying said product 3. More people buy it, more $ for you and the business. This would make me work harder to ensure that I made the best product possible. I dont think that 15-20% is too high, with a stipulation that any versions that you dont work on after this version you earn 5-10%. If the company is willing to do this it could be your option.