Xcode and Mac Bluetooth

Hi All, I would like to know the possibility of using Xcode to create program which would act as the controller for the PS3 system.

The Program that can make the Keyboard of the macbook as joystick for the PS3.

if program is able to connect the Ps3 via Bluetooth would be great but If Bluetooth cannot be modified or the ps3 bluetooth frequency/hardware are different then that of mac then can usb cable used to connect with the ps3?
Please help.