A few people had asked if the LED lights from Litepanels would interfere with LED lights in a Reflecmedia Litering. We sent down a system to Litepanels to test out and the question was answered. No problems whatsoever. As long as the Litepanels lights are not on the same axis, such as having the light directly behind the camera, there will be no interference.
Here is the video to take a look at YouTube - Professional Green Screen LED Lighting (http://www.youtube.com/watch?v=igkyf83zhg8&fmt=22)

Cool test, Guy. Is that also your experience with the products, especially when keying a moving subject?

Yes, I've tested Lowel Caselights, Lowel Rifa tungsten and fluorescents as well as Prompter Peoples LED 500 and 1000's with the Reflecmedia litering. They're all fine. Just remember not to get any lights on the same axis as the Reflecmedia Litering. The chromatte beads are like satellite shaped reflectors so only if another light source was behind the camera +/- 10 degrees would it wash out/over power the blue/green.