In mobile wireless communication networks, the details of the mobility
process are often not as essential as the pattern of network connectivity
that the mobility induces.  We develop a new framework for studying
mobile connectivity which maps a network of mobile nodes to a network
of stationary nodes with dynamic links.  Using this framework, we analyze
the delay for information dissemination in large-scale mobile wireless
networks.  We show that under certain mobility models, the scaling
behavior of the information dissemination delay falls into two regimes.
When the network is not percolated (subcritical), the delay scales linearly
with the initial Euclidean distance between the sender and the receiver;
when the network is percolated (supercritical), the delay scales sub-
linearly with the initial distance.