I plan to get Wi Fi coverage on my PDA soon. If I somehow wind up without it, I'll get a used laptop online and install Wi Fi. DFW appears to have some Wi Fi capability. That's one hurdle covered. What about:
Also: Does anyone know what version of 802.11 those airports use? Are they using A, B, D, E, G or I and do they use firewalls? Will any of these be public access or will they make you pay a user's fee to connect?