The question was how could I get to Amsterdam and have a persistent net connection as I walked and biked through the city. I had redundancy, at Doc's suggestion -- but here I am in Amsterdam and neither of my phones are able to get on the Internet, even over wifi.
The Nexus S presents a screen that says it couldn't connect to my Google account. It offers to let me type in my password, which I do, and it still says it can't connect. Same with maxroam.com or wifi. (No problem accessing my Google account on my MacBook over wifi.)