Its kind of disappointing that they aren't trying to parse natural language. I know that would make it a ton more complex (and possibly beyond our capacity to do), but to me that would be truly the next generation from our current flavor of search engines. If I could truly ask a question and have the computer understand what I'm talking about to return an answer, rather than just trying to match keywords. That's Wolfram's goal, I think, but I don't know if they can really get there without parsing human language.