No one has figured out how to remap the Wifi switch, if it's even possible. However
AE Button Plus lets you remap just about any other hard button, including single, double, triple, and long presses. I have it set so pressing the Comm Manager button turns on/off vibration mode, double press turns on/off BT, and long pressing opens the Comm Manager. I've used it to map every hard button except for the camera button and it works great.