They didn't show me anything as far as validating the idea; nothing shown towards funding efforts (just, "I have people in my phone I can call right now for funds."), nothing towards user acquisition (I asked about their plan; one involved marketing against a hit movie's release).
No buy-sell agreement.
Not exactly sure what the electrical engineer is afraid of in terms of learning how to write code on his own in order to develop at least the alpha of this. He just told me, "It's not my thing." The other guy said something similar. Both said they're willing to learn but that it'd take them a really long time and that, essentially, because I already know how to do it, they called on me.