arakattack supports EHCI 2.0, and works under MOS (not native but...)
it also has some issues with the 'built-in' UHCI driver,
to make it work better you must 'patch' the openUSB.device.

it isn't perfect... but it works, and is free.

both OHCI and UHCI is USB 1.1 UHCI is the slower of the two
(requires more CPU power for the same speed)