If he doesn't went through unforeseen event wich i hope he doesn't. Then I guess that he struggled and collapsed when he tries to provide some multiple projects that has comes to a point of struggling in finishing it as described. So he stopped. and i agree if he decides to disappear without any convincing reasons he should inform thus who paid for incomplete promising projects.I think the developer has went the way of the Dodo ! Either way, I would NOT do business with anyone who simply disappears for months. Not good business.