Big button USB input device.

[Harkin]

PS2 does indeed make use of USB devices, I should know my g.f spends FAR too much time on Singstar with those damn USB mikes

I pity ur ears

[Kumagoro]

I had thought of using a USB converter but as the experiments are timing based it could potentially add some latency.
Using USB in the first place isnt a good idea as its polled.

Windows is set at 125 Hz but can be patched to run much higher which helps things.

Cheers