In the last few weeks, I've talked to a lot of people that care. And in general people do care: http://blogs.wsj.com/digits/2010/12/21/web-surfers-troubled-...

I can tell you that normal people who care also don't know about HTTPS or how to use it. I'm all for Google making it easier to do so, or otherwise stop this personal information from leaking. See http://news.ycombinator.com/item?id=2122431 for some ideas.

Also, FWIW, HTTPS alone doesn't solve the issue completely, as HTTPS->HTTPS traffic still leaks.