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.