I am OK with the fact that if he is an equal contributor in this project that I would be happy to divide the revenue( or equity) equally. However, I think I ne

I am OK with the fact that if he is an equal contributor in this project that I would be happy to divide the revenue( or equity) equally. However, I think I need to make it clear to him that I am taking a personal expense on the server cost as of now and into the future till if/ we make any money or just leave it behind as a fun project that we both collaborated on it. I think 60/40 sounds fair and reasonable. [I would love to hear other people's opinion on it] A few questions further into it: 1. Say we do it 60:40 (informally say over email records), what happens if he works on for a while and ... a. does a good job and then decided to not continue for X reasons. b. does not get anything done for X reasons and decides to move out of it. 2. This is a pure fun project on the Social Networking platforms. So, it may or may not work like N other applications. Is this the right time to talk about it and how to bring this revenue sharing idea into the discussion without loosing the other parties interest?