This is just too cool and it's FREE. If you've got an iPad, you can now have a three-trackball, three ring MULTI-TOUCH WIRELESS color correction controller.
Go to Tangent Devices website. Download the Controller app for your Mac and then download the iPad app for FREE from the App store. Then, as long as your WiFi iPad is on the same network as the computer running Apple Color, you can manipulate the trackballs and rings SIMULTANEOUSLY on your iPad to control the UI of Apple Color on your MacPro or MacBookPro. You've got to see it to believe it, and that's what this video shows.