Lately, I've understood how URBI can be used as an "orchestrator" for ROS by having URBI be a node within a ROS network. Does the PR2 robot have an "orchestrator"? If so, how is the orchestration done on PR2? If not, why doesn't the PR2 have an orchestrator? SamQ _________________________________________________________________ The New Busy is not the old busy. Search, chat and e-mail from your inbox. http://www.windowslive.com/campaign/thenewbusy?ocid=PID28326::T:WLMTAGL:ON:WL:en-US:WM_HMP:042010_3