In this moment (after 12 hours ago of interesting talks), we learn about Desktop Grid Computing. People work unified by Grid Computing. Volunteer computing allows shared propositions, ideas, resources and goals between differents-heterogeneous-multi-cultural possibilites!!! Of course, as is well known, infrastructures, middleware and applications are important, but, the most important are the people (different people :-) like in ISSCG'08).
Just for information, next desktop Grid Boinc meeting: http://boinc.berkeley.edu/trac/wiki/WorkShop08