Ahh! I went to his SXSW talk this year and was absolutely entranced with the Wolfram language. It seemed like a real step forward in innovative thinking and actual "natural language" programming, but I was sad it's proprietary.

I think the power of it is really undervalued - using all the knowledge of the wolfram-alpha engine to create objects? Such a neat idea! Imagine if Google built a similar language based on their search engine data - the kinds of programs people could build and might accidentally build just playing around boggle the mind.