I personally don't mind using it unattached to the controller, as a ps2 keyboard . . but I'm not sure about replacing the firmware right now . . anyway thanks for letting me know.
I too really need to be able to use the chatpad connected to the controller on a PC. Do you have any information on this at all? Nobody else seems to be doing much and Microsoft might never do it, or not for a long time . . I know it's out of place, but there's nowhere else I've found either.