In 2007 Project Dakota was born out of need to mass update computers on a daily basis. Over time it evolved to more than that and ended up taking off to a full scale deployment.
By 2009 the lead developers of Project Dakota had released 4 versions that was downloaded over 20000 times – we crashed 2 web servers because of the slashdot effect.
You can read more about Project Dakota at the main site of http://www.projectdakota.net