Found Hotspot Shield today when looking for some new security stuff for my laptop. Besides the toolbar it's an interesting tool. They also have a version for the iPhone.
Ensure you are private, secure, and anonymous online!
* Hide your IP while you're online.
* Access all content without censorship; bypass firewalls.
* Protect yourself from snoopers at Wi-Fi hotspots, hotels, airports, corporate offices and ISP hubs.
* Works on wireless and wired connections alike.
http://hotspotshield.com/