Samsung is in the process of building four -- count ’em, four -- new offices in the San Francisco Bay Area, though they are oddly scattered in four different towns all within a half-hour's drive of each other. We have previously reported on the start-up incubator in Palo Alto; there's also the 8.5-acre planned campus in Mountain View and a new strategy and innovation center in Menlo Park. And now comes the official announcement of a 1.1-million-square-foot sales and R&D headquarters north of downtown San Jose...