GB-controller app for iPhone and iPad

AS a virtual controller ,this app can control the helicopter after you connect the device to the audio jack of iPhone/iPad/iTouch .
This application has 6 parts :
1.On the left screen :This is helicopter’s accelerator , it can fly the helicopter to up in the air by move forward and land the helicopter to down when you move backward of it .
2.On the right screen : This is helicopter’s direction , it can fly the helicopter forward , backward , left or right.
3.On the center of top screen : Press “AUTO” , the helicopter can automatic flight , without moving the helicopter’s direction .
4.On the center of bottom screen : You can use this trimmer to adjust the helicopter to left or right when the helicopter is keep rotating in the air .
5.On the center of the screen : press the button to start the controller ; press down the second to off the controller .
6.On the upper right corner : You may turn on/off the g-sencer to control the helicopter.