It doesn't make any difference...
one USB-stick and one hhd on a 2.0 hub work fine, if I add a second hdd, there's trouble... I'm starting to thing the hub is broken...
cat /proc/bus/usb/devices only shows usb-hubs when the problem is there...
Also, the usb init bug was in 002-bcm5354.patch. So i don't think my WL500gP V1 was affected.