A reader brought to my attention the work of EyeClick, an interactive multimedia advertising company that has been around for a few years. They create interactive floors, and use "intuitive body motion with floors and surface areas".
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-EyeClick

I've included several videos below, but for more information and related details, check out EyeClick's product page, which has a nice showreel, and information about the benefits of interactive marketing.










EyeClick appears to be similar to lm3labs, a company I've posted about previously.

Thanks, Paul Glen for the link!