An anonymous reader points out a ReadWriteWeb piece on an hour-long demo of Wolfram|Alpha (which we discussed at its announcement). Stephen Wolfram does not like to call it a "search engine," preferring instead the term "computational knowledge engine." It will open to the public in May. "The hype around Wolfram|Alpha, the next 'Google killer' from the makers of Mathematica, has been building over the last few weeks. Today, we were lucky enough to attend a one-hour web demo with Stephen Wolfram, and from what we've seen, it definitely looks like it can live up to the hype — though, because it is so different from traditional search engines, it will definitely not be a 'Google killer.' According to Stephen Wolfram, the goal of Alpha is to give everyone access to expert knowledge and the data that a specialist would be able to compute from this information."