Google Geo Developers Blog: Maps APIs over SSL now available to all
http://googlegeodevelopers.blogspot.com/2011/03/maps-apis-over-ssl-now-available-to-all.html
As public WiFi becomes increasingly ubiquitous, we spend more and more of our time on shared networks. This can expose our personal data to third parties if the sites we access are not secure. Many sites use Google services to store and manage Google data. In response to this, Google is today announcing improved support for SSL (Secure Sockets Layer) across many APIs, and recommending that any application that manages user data switch to using SSL.