[jerf]

Well, sure there's a difference between visual programming and natural language. There's a difference between both of those and augmented reality, which also has remained firmly demoware. And those three are different from the Minority Report-style interface that's been talked about a lot lately courtesy of the Kinect.

Note in particular the differing levels of what you might call "eventual feasibility" for each of those things... but none of that changes the fact that they are all demoware, and another demo isn't really all that intrinsically interesting until they push it somewhere actually useful, and thereby, new. Demoware isn't necessarily a permanent status, but another demo is not sufficient to escape.