That's exactly one of the issues checked exceptions are meant to deal with - if the exception-throwing behavior of code you call changes, you get notified during compilation so that you can update your own code (either by handling the new exceptions, or passing them on). That's not bad, that's good!

What's the practical alternative? A random new exception shows up in your error logs one day, and you think huh.. guess they changed their exception spec?

To each his own, as you said, but I love Java's checked exceptions. One thing I hate about C# is that it won't even let me optionally specify each function's exceptions.

Actually, there are 3rd-party mail apps for iPhone, e.g. AltaMail, which I use. There are probably others too, though I have no idea whether any of them support S/MIME.

Your basic point stands, of course - I just wanted to point out that whatever official reasons it gives for App-Store rejections, Apple only "plays rough" with apps submissions when it feels like they challenge its core business, not merely because they duplicate Apple-provided functionality.

Or pants, apparently.. um, which profession did you say you were in, again? :)

Dude, it's your perfect world.. why not just go for the gusto and wish for the actual Natalie Portman?

:-)