Could be something, but so far it is not. – FSXControl, Control your FSX plane from your device Review

The idea of controlling your aircraft with your iPhone accelerometer is fascinating! I bought this to give it a try and was a bit disappointed. After a tricky installation, I managed to get it working. Here's what I think: 1) Having to have Internet to get it to work is bad and limits it's usage. I bought this so I can fly with my notebook while I'm traveling and not carrying a joystick. I don't have Internet access most of the time so this app becomes pointless to do that. What if I want to use it while I'm in a long haul flight? Fail. 2) The controls aren't smooth at all. If you need precision for that 747 landing, you might want to land with ILS on autopilot because the controls aren't really in real time. 3) There should be a way to use it with your USB cable plugged, so we would have faster controls and no need for wifi. 4) The graphics and layout are bad. Also, landscape mode doesn't exists. 5) There is no way to calibrate the yoke for a comfortable position. I can see this app going somewhere in the future, but it surely needs a lot of work to improve it. I hope they update it regularly.
Review by Joao Amaral on FSXControl, Control your FSX plane from your device.