> If you're blasting your data over an unencrypted wifi connection, do you have a reasonable expectation of privacy? This seems to be equivalent to someone screaming the contents of their email, and then getting angry at you for eavesdropping.

Exactly. I agree with other commenters that Google is not to be trusted, but I think this article isn't even specific to Google--it's just another illustration that unencrypted Wifi is public, and anyone with half a clue should know that by now.