HN user
Uh? That's impossible to do.
Facebook already provides a way to download all your data, so Google just needs to write software that uses it and uploads it into Google+.
Alternatively, they can just automatically scrape the Facebook website via HTTP directly from the user's machine (using a modified Chrome, modified Android, desktop tool or Android app).
Why doesn't Google just provide a tool to import a user's full Facebook data into Google+ with a single click?
They could even do it without the user's consent for people using Chrome or Android, or they could pay people to do so (it might cost them 10 billions, but it would be quite a good "company" to "acquire").
Without doing that, or having some killer feature, there's no way that they will take off.
Couldn't Haswell motherboards automatically test the PSU on bootup?