The title of this post was just misleading a bit. I didn't mean to use trivia as a pejorative, just this is how I call the whole "use data X to answer question Y" domain of NLP, which are fairly distinct from dialogue processing systems. You seem to be basically in competition with Wolfram Alpha, except you focus on custom structured data sources, but they seem to do something here also [1].
Yup, Wolfram are a scary competitor, EasyAsk too. In my head, we're targeting the lower-end of the market - potentially smaller data models, no consultancy face-time. We'll see how realistic that turns out to be.
[1] http://products.wolframalpha.com/enterprise/