While none thought you could be successfully prosecuted just because someone else used your network to commit a crime, any investigation could be time-consuming and expensive.

That right there is all that needs to be said as far as I’m concerned. It’s one thing for somebody to abuse a coffee shop’s wireless. There’s an expectation of that being a public space. But a home network? Sure, you can claim you leave it open, but do you really want to spend thousands of dollars trying to explain how that makes you free and clear to a non-technically savvy jury, judge, and prosecutor? I’m not up for that, so I’ll be keeping my network locked down and keep logs. If other people feel brave, bully for them.

Also, there’ still the question of using open wireless networks. What about that case where some dude got onto a city hall’s wireless network, and then went in as a good Samaritan and said “Hey, you network is unlocked.” and ended up in court?

Finally, I don’t think I’ve seen a useful open network in a long time. It would be much better if I could just get a good data rate for cheap on cellular. That would be far more useful on the road because when you’re traveling you’re usually not near some dude’s house, you’re near some stupid airport’s pay-for wireless.