[galvan]

Ah, iodine. I've used it in airports, hotels, cafes - it's great. The only drawback is that it's slower than dialup and latency is off the charts. But when you're stuck on a cruise ship and internet access is $8 a minute, being able to ssh somewhere and browse the web and check your mail very slowly through links is worth it.

[batbomb]

I usually just spoof mac addresses of people who already paid in most of those cases, the caveat usually being somebody had to pay.

[Steuard]

I hope you're not still talking cruise ships here! Those folks are often paying high prices by the minute or by the megabyte for access: you'd be pretty literally stealing from your neighbors in that situation. (The moral issue for pay-by-the-day systems is one step further removed, but I think it's still real.)

[brianpgordon]

I was staying at a Hilton (Omaha, NE) last night and their captive portal scared me off by putting the MAC address, IP address, and user agent in the query string, plus network stuff like the VLAN id and the MAC address of some piece of network gear that's servicing you. It seemed like they had a pretty complex system to deter abuse.

Of course, I just tethered my phone and got way better service than their crappy $10/day wifi.

[UVB-76]

If those people have a download limit that's rather unscrupulous.