I too get the KP issue if I reinstall EDP 1.8 after the 10.6.8 update. I guess there's an obvious workaround for now.
This topic seems to be shifting away from the wifi issue. Has anybody managed to fix their wifi using the method suggested above with Pacifist (whatever that is!)? If so, could they please offer a step-wise guide for the rest of us? If we need to rollback a kext it would also help if there was a means of identifying it as well as rolling it back.
Thanks in advance,
Darren.