Ive looked at all those modules, and As i said the ethernet hardware is not set in stone yet. I just wanted to figure out the communication bus. I have used some of those modules, like the bluetooth module is an RS232 over BT, good for mobile phone or tablet devices that you need an RS232 port for. Wireless at that.
I dont have any experience in the WiFly modules, but the serial controlled wireless radios would be ok. I would have to have the one that you can program the application, because having the TCP/IP stack is great, but you still need ethertalk stack. If it isnt supported, you would have to do appletalk over TCP/IP.
Again, MY goal is not to have any "extra" wires run anywhere. And not have a hump on the back of the duo. (for me at least). Trust me, I can think of 10000 ways to wire up hardware, mostly go to the PDS bus. I could have a dongle in the back either in the PDS slot, or in the serial port asking to get snapped off.
Or... i can have a wireless/wired card in the modem slot and be done
Main PC: Intel core I7 920, MSI x58 platinum, Radeon4850
PB: tibook G4, ibook G4, Lombard, 160, 165, 180, Duo 2300x2, Duo 270c x2, 520cPPC, 3400c, 1400c
Desktop: G3AIO, 5260/100 x2, SE, SE/30, 512k, plus, LCIII, 7100, iMac G5 iSight, 6400/225