Google Secure Access is avaliable for download, but they don’t specify if it works in areas where there is no Google WiFi.

From the FAQ:

Also, it seemingly only works in San Fran.

What is Google Secure Access?

Google Secure Access is a downloadable client application that allows users to establish a more secure WiFi connection.

Why would I want to download and install Google Secure Access?

Google Secure Access allows you to establish a more secure connection while using Google WiFi. By using Google Secure Access, your internet traffic will be encrypted, preventing others from viewing the information you transmit.

Why is Google Secure Access a beta product?

Google Secure Access is a new product that is only available at certain locations in the San Francisco Bay Area. We are constantly working to improve this product.

…oh yeah and of course it is PC only. Love ya too Google ::grumbles::