Wired news has a story about Phil Zimmermann's plans to develop a program for encrypting Voip calls. I definitely agree that there is a need for encrypted voip, but this is not so revolutionary. All of Skype's calls are already encrypted and apparently Gizmo now has the capability built into the software. I am not sure whether there is much consumer voip hardware that supports encrypted SIP, but it can't be far off. Is there still a need for Zimmerman to write (and sell) such a technology?