I understand it a little better now.It seems you will use broadband to send and receive the data between the networked PC's. Although it relies on the speed of individuals connections, I guess it won't matter due to the data being everywhere. It'll pick it up where it is fastest, and maybe even closest (like the cloud works now).
It's a system that will only work once millions use it, until then it's bound to be a little slower.
I say give it a go when launched, we've nothing to lose after all. Tor on the other hand, I trust very little. Colin.