Links, for the curious:<p><a href="http://www.planet-lab.org" rel="nofollow">http://www.planet-lab.org</a><p><a href="http://www.hpl.hp.com/open_innovation/cloud_collaboration/cloud_technical_overview.html" rel="nofollow">http://www.hpl.hp.com/open_innovation/cloud_collaboration/cl...</a><p><a href="http://cloud.cs.illinois.edu/" rel="nofollow">http://cloud.cs.illinois.edu/</a><p><a href="http://www.cs.duke.edu/courses/spring08/cps214/project.html" rel="nofollow">http://www.cs.duke.edu/courses/spring08/cps214/project.html</a> (Testbeds and Emulation section)