Crossing the Pacific via container ship

My friend Tony is currently crossing the Pacific in a container ship, as the first phase of his "no airplanes" round-the-world trip. He's a geek, so he's tumblring the trip if you wanna follow along.

The other day Todd was asking about how he's posting his coordinates (example, map), so I asked Tony and he replied while they were docked in Yah Tian:

"I set up the email to post for my account and I can do simple, text-only, emails through a satellite system on the ship. So once per day after dinner I use my iPhone GPS to grab my coordinates and send them to the Tumblr email."

Low-tech. Sort of.