I recently released the WiModem for the Commodore 8 bit computer (see: http://www.lemon64.com/forum/viewtopic.php?t=58889
I have had a couple of people ask if I would make a version for the Amiga. I took a look and it would be fairly easy to make a version for the Amiga that plugged into the serial port (via DB25). It could be powered by the Amiga.
This would give you a WiFi modem that you could use to "dial" up BBS's. We are doing that now with the C64. I am not sure how many Amiga BBS's are out there right now. There are dozens for the C64.
Is there any interest in this?