In reply to Klaas.

I would guess only that page - for now. Waiting can't end well and the cost is marginal even if you go with a paid cert.

Since they put it this way....

"Eventually, we plan to label all HTTP pages as non-secure, and change the HTTP security indicator to the red triangle that we use for broken HTTPS."

....I'm not waiting around to see what "eventually" means to them. That could mean 2 years or that could just as easily mean next Tuesday. It wouldn't be the first time Google has dropped something really early (I'm looking at you AdWords - grrrrrrr). :)

Top of my to-do list right now.