I started poking with Leap Motion and the great aka.leapmotion external, combining the finger tracking with another wonderful peace of code which is jit.boids3d...
The patch uses a poly~ to create an indipendent flock for every finger that appears over the Leap Motion. You can control the parameters of the single flocks using the target message.
The camera settings are calibrated on a second screen with the Leap Motion placed beneath it (and actually the output window automatically goes fullscreen on the second screen when you open it..), but you can adjust the settings to set your measures with the "camera position" values.
I'd love to know your opinion about it.
obviously, you need to install the Leap Motion drivers to get it to work.