Here is my warning of caution! I hate to be a stiff so don't take this the wrong way. Just offering a voice of reason.

Not sure what you guys are doing.... but I would be very careful! I don't pay deposits for anything in development unless I am prepared to get burnt and lose the money. This stuff happens all the time and never turns out good in the end! Even if you have the best intentions this thing can go sour in so many different ways! Doesn't work right, not exactly what you expected to get.... or even worse someone runs away with the money.

Just not worth the risk. Collecting deposits to develop something seems like a great idea but never turns out well in the end. But still people are anxious to sign up and get involved. I don't understand why.