I have a strong distaste for businesses that tout their amazing technology but then don't put even ball park figure costs on their products website. exceptionally annoying.
I'll bet. good article, and your product continues to look interesting. I'm browsing the SDK documentation and would like you congratulate you on its accessibility. (for context, he's talking about: http://www.pittpatt.com/)
Error reporting. Figure out a way to handle errors in a useful manner and report that information back to the developer. This is probably the second most soul crushing endeavor in all of programming.
How so? This sounds like a simple case of using continuations. If something odd happens, call the callback. The user code can then decide what to do; either continue the computation, abort it, or do something else.
(BTW, about Qt being the most elegant library... does it still require "moc"? If so, that's not exactly elegant; at best it's a horrible hack, at worst, Qt is a programming language that compiles to C++. Neither are particularly elegant.)
