Plainly put and well put. They sold the dream, mentioning to me that we can change our lives, buy Patek timepieces, get boats and finally meet Kanye West. At the end of the day, it'll be a major time investment for me and I don't see how 4 to 5 hours a week would be sufficient any any business situation, especially when it comes to tech (although, I would love to only have to invest that much time into anything and change mankind).
It'll really come down to me doing a lot of development between now and October, including managing another developer if they stay true to their word and get another developer to help out.
And no, they haven't already exited or anything of that nature. Not yet. Ambitious friends of mine, though.