Hi..
I modified my La Fonera board to bring the extra GPIO lines to the 10-pin serial header. (the four on SW1, plus TP3) I then took the LED/button board from an old Powerbook battery that no longer holds a charge, and wired a few inches of ribbon cable to it. With a bit of jiggering with the IDC connector, I now have software control over four LED's and a button.
Hope it works with you also.. _________________ DVI video switch