Seems like Google will let you connect to their VPN and have a more secure WiFi connection...hmmm

http://wifi.google.com/download.html

So far, as per usual, it's in beta, and only for the San Fran bay area.

Snipit from their FAQ:

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.