If you travel up and down I-5 for business, you'll be interested in Amtrak's recent announcement of wi-fi Internet access on all trains. Commuters have long known the Amtrak Cascades for the comfortable ride and power outlets at every seat. But you had to work offline or bring a 3G card to have Internet access.
Now, you can use wireless for a small fee, and stay connected while you go. First reports are that it works well, though the coverage is spotty in some areas. Let me know what you find!