OffOff and its successor Off++ are distributed microkernel OSes that transparently migrate light-weight processes ("shuttles") over the network, communicating by distributed IPC ("Portals"), in a one global distributed shared memory space. By Francisco J. Ballesteros & Luis L. Fernandez at University Carlos III of Madrid. C/Web literate programming sources available.
Reminds of the Mungi project... -- ?
This page is linked from: Plan B