Apple has confirmed the purchase of a 98-acre site near its existing headquarters in Cupertino, CA. The site has served as a longtime campus for rival tech company Hewlett-Packard, and sits across the street from a 50-acre site that Apple acquired in 2006 and had previously announced as the location for a planned second campus. “We now occupy 57 buildings in Cupertino and our campus is bursting at the seams,” Apple spokesman Steve Dowling…