Imagine a 3D videogame like environment, except instead of a game, you are attending a virtual trade expo, with other real people, over the internet.  Could this ever catch on?  Personally, I think there is no replacement for meeting in person, however, this has a lot of potential applications for international businesspeople that can't afford to travel overseas often. 

Here's an interview with the CEO of InXpo, talking about his product:


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