Om Malik's blog has a guest coumn by Robert Young, (via Emergic.org) asks the question: 'What happens when you have 100 megabits per second connections on the edge of the network?'. 

"Put another way, what are the implications when millions of people start creating ad-hoc wireless networks among themselves? Well, if you zoom out to look at the big picture, the most obvious implication is the rise of truly distributed peer2peer networks randomly and serendipitously popping up in meet space that have absolutely no central points of control. "

'Meet space', hehehe...