I wrote a paper to survey Virtual Machine Monitors, Virtual Machines, and uses of Virtualization for my class (CS423, UIUC), and one of the most interesting sections of the papers I surveyed was the description of the migration of a running VM in the Nomad paper.

The process needed for such a migration is complex, but certainly describable. VMWare and Xen can both migrate running VMs, so it's not brand new magic, but the interesting thing to note is that a user-initiated live VM migration can also be rewritten to be an even-driven self-managed VM migration.

Real, digital robotic "entities" that can move throughout a network. Certainly, the first steps will be small.