Was going to replace the existing WLAN card in the X61T with a newer, more linux friendly version, but I couldn't get the screws loose, and ended up stripping them in the process. So in the end, I decided to hack the second WLAN card by covering pin 20 with electrical tape, adding a 4th antenna into the palm rest, and viola. Now the machine has two WLAN connections, one that is newest technology that is very linux friendly. Plus there is some signal loss due to the digitizer and touchscreen interfaces causing interference with the antennas, so the added antenna in the palm rest make the connections more reliable.