Hi,
We now have a control adaptor for Xbox 360. This does not require the use of a wired controller as well, and has no lag.
We are currently offering this at 50% discount for beta testing, with an unconditional refund if not up to the mark. It requires a 6-button per player panel equipped with an I-PAC or J-PAC.
If any interest please drop me an email at andy@ultimarc.com
Thanks
Andy