Gbridge automatically forms a VPN between multiple computers, no matter where they are. You can also extend the VPN to include your Gtalk friends' computers if both parties allow it.
Greatly extends Google's Gtalk infrastructure, self-forming, zero configuration.
IPv4 level compatibility while providing authentication, encryption, and mobility.
Point-to-point direct network connections, excellent privacy, and great performance.
Dynamic DNS and private IP addresses resolve real-world naming and connectivity issues for almost all network applications.