I've got the code written, but it needs a bit of a cleanup still.
However, I can now get a list of access points, their received
signal and noise levels, and their capabilities.  I cannot yet get
their names, since I do not know the protocol to do this.

1000832043.211
    00:60:1d:1f:64:87 flame.org
        channel  8 signal -50 noise -97 beacon 100 AP
    00:04:5a:d2:cd:23 home.flame.org
        channel 11 signal -54 noise -73 beacon 100 AP/WEP

(BTW, Unix timestamps seem so damned strange with that leading 1...)

I plan on cleaning up the driver and committing it later this week,
along with a program, probably called wimonitor, which will display
the nearby access points.

--Michael