I doubt Los Angeles Airport is on any Australian's "favourite airport list", and a big reason for that is the inevitable lengthy queue to get through US immigration and customs procedures. There's nothing fun about queuing for an hour, but it's rather less hassle now that you can use the airport's free Wi-Fi on your mobile while you stand around.
We reported on the free Wi-Fi offer for LAX last month, but I was a little surprised to find that the service does cover the arrivals hall as well. While you're warned not to use your mobile phone to make calls or take photographs in the customs hall, no-one seems to care if you text or browse.
I spent 45 minutes going through LAX customs yesterday morning (just short of the point where you get charged to use it), and caught up with my RSS feeds and email. It made an inevitable but annoying part of the trip more productive, and it's much cheaper than roaming.