Received and installed yesterday, no problems encountered. YMMV
Found it here for $55 plus shipping.
http://www.4linkcomm.com/xtie80mipci.html
Not a real powerful transmitter, but seems to work just as well as my
old PCMCIA card. Supposedly supports "G", too, though I haven't tried
it yet.
Install notes:
When you install it, tilt the antenna connector as you plug it in, it
goes in a lot easier that way. Look closely to see which way to tilt
it.
Also, don't be afraid to use some pressure to fully seat the card in
the socket, it'll "snap" about a 32nd of an inch into final place. If
you're not sure it's in, then it probably isn't. Took me two tries.
HTH
Mike