Sent from my SGH-I777 using xda premium
It's all about the kernel. The leaked AT&T ICS ROM's kernels work, which is a bit strange, but the GB kernel and most of the custom kernels do not, except for CM7 kernels, I guess... AOKP comes with the CM9 kernel and it does not work.
The problem is the ICS sources for the i777 are not available yet. Once they are, CM9 will hack or replace the bluetooth stack and we will have our glorious BT gamepads working again.