x-kad is a mix between P2P and VPN networks.
P2P technologies (in particular DHT) have proved capable of building an infrastructure for data storage and recovery.
VPNs, on the other side, offer an elegant solution to the problem of privacy, anonimity, and security.
By joining VPNs and P2P, we believe that it is possible to build a parallel network seamlessly integrated with the operating system.
Having an integrated DNS, any application could simply take advantage of the functionalities offered by x-kad simply connecting to special URLs like " http://name_of_an_host.kad".
What can a project like "x-kad" be used for?
Contact a computer, be it behind NATs or firewalls
Building a user-depending firewall
Easily build communication (VoIP or whatever) applications without worrying for user database management and NAT traversal