When Leap Motion was introduced last fall, the product website posed a still-standing question to developers: 'What would you do with this?' Developers who respond with an interesting pitch get a Leap Motion test unit. 'Developers will realize the full potential of this via apps.' 'We're a platform, not just a piece of technology,' says Michael Zagorsek, Leap's vice president of product marketing.

Leap wants them to show the potential - and push the limits - of the interface.