Check out this review of V-Control Pro, by Nick Trass of Apps4iDevices.com. He goes through a lot of the features showing connection and control of Tracktion.
“I highly recommend V-Control Pro for anyone using both an iPad and computer because it offers the ability to control everything just from your iPad. This app has totally changed the way I work on my Mac and allowed greater control and easier workflow, so I definitely rate it … A Killer App!”