It's quite funny that you would ask such a thing. You realize that you just mapped out everything for them didn't you?
This is a great story of an idea that wasn't executed on time, and was taken by other people. Like say anyone of those developers you mentioned. Or maybe even me. Don't forget what happened to the Mcdonald's brothers.
If you wanted to go for something like this, you should have spoken to your target developers privately about this, then get the word out to people once you're within 50% of the work needed to build the code.
Now I guarantee you, being in business for 10 years, you are now competing against someone in building this as fast as they can, with probably deep pockets. Good luck Jerry Banfield.
You're right another developer might take the idea and build it themselves! If so, I am happy to have helped with the planning even if I do not get anything because I already have enough today! However it gets built is fine with me!
You're a wonderful guy. This community is lucky to have you.