Cooperative Content Distribution Model
Explained here at http://www.gridnetworks.com/?section=solutions-ol-rewards
"Grid networking follows a “cooperative" content distribution model, in which many participants can securely benefit from one another's unused upstream bandwidth to legally and securely access large content files – many of which have not been made available via traditional methods because of the high cost of distribution.
To encourage users to remain connected to the network, the PowerGrid Core components are carefully designed to use minimal computing and bandwidth resources. PowerGrid practically eliminates impact to individual grid participants by utilizing relatively small portions of the bandwidth from many grid participants simultaneously.
Of course, this approach also provides exceptionally robust, high performance streaming and file delivery capable of "filling the broadband pipe." The end result is highly secure delivery of content at true broadband speed without the heavy loads so often associated with traditional peer-to-peer file transfer systems. "