The University of California in Berkeley has posted a full breakdown of a recent decision to pick Google's Gmail and Google Apps over Microsoft's Office 365 in what represented a changing of the guard. Although not an unambiguous win, Google pulled ahead by being free, taking a fast six to ten weeks to implement, and popular. Using its system would require much less of an overhaul than Microsoft's, Berkeley said, and man of the students and staff alike already knew the apps.