Cross DJ Remote for iPad is a very useful tool for controlling your Cross mixing application via wifi. It emulates the U-MIX Control midi interface and offers many dynamic interaction solutions that are not possible on a hardware controller.
This was a very interesting project to work on, simply because we had to emulate a hardware MIDI controller on an iPad touch interface. While the specs were very simple and the design had to follow the U-MIX Control, the actual realization required quite a few user interaction tricks. The jog required an interesting adaptation as light and shadows were needed to mimic the normal hardware rotational movement.