Just an aside: I'm having fun imagining a single-click "move from Facebook to Google+" link going viral. I don't know if it's technically possible. But consider the people who browse while signed into Facebook. Add the ability to export your Facebook data (not 100% sure this is possible). Doesn't seem too far-fetched that Google could cobble something together. Also when I click and move everything over perhaps my friends would be informed/spammed about the move with the option to move themselves. It's "Facebook-magedon"!!