2K

ACCORDS Project
Automatic Configuration and Monitoring of Component-Based Distributed Systems. From Universities of São Paulo, and of Campinas, Brazil. Part of 2K effort.
http://www.ime.usp.br/~song/accords/

2K
Component-based network-centric OS for the next millennium: distributed, adaptable, designed for frequent change, from the Systems Software Research Group, and the Multimedia Operating Systems and Networking Group, University of Illinois, Urbana-Champaign.
http://srg.cs.uiuc.edu/2k/

Off++ uKernel
Distributed adaptable microkernel (has been discontinued). GPL'ed. Transparently migrates light-weight processes (shuttles) over a network, communicating by distributed IPC (Portals), in a one global distributed shared memory space. C/Web literate programming sources available.
http://plan9.escet.urjc.es/who/nemo/off.html