Fortunately, Hardware.info reports no problems with SLI whatsoever, but it also concludes that the GTX 680 doesn't scale quite as well as AMD's Radeon HD 7970 in this type of niche setup.
For the uninitiated, the Lynx A is billed as a point-and-shoot 3D camera that uses Kinect-esque hardware to obtain depth mapping and imaging info from your surroundings.