The [cr]Appstore is going to do a pretty good QA job on the user interface. The backends can bite you in less obvious ways but crapware is crap because you think the answers it gives or the bills it sends stink:the dumb get dumped. Software that truly and immediately effects human safety and comes with no liability disclaimers is mighty hard to find. Who is going to use Swift for stuff that is sold/unleashed through outlets other than the Appstore? Let in the clowns.