A way to secure "Open" Networks?

This could be really big as it sounds pretty trivial to implement and use. If anyone can find flaws in the plan, I'm sure the audience at Black Hat will, so this will get scrutinized pretty quickly. Maybe we'll see this role out in widespread soon?

Amplify’d from threatpost.com

LAS VEGAS--Researchers from IBM's ISS X-Force plan to unveil a new system for running an open wireless network in a secure mode at the Black Hat conference here this week. The system mimics the way that Web sites browsers use digital certificates to establish a trusted connection with one another. Read more at threatpost.com

See this Amp at http://bit.ly/qRnxpQ