At this year's WWDC Apple previewed the latest version of OS X 10.9 named Mavericks. The name was a departure from its previous scheme of naming OS X after cats. As Phil Schiller noted in the keynote, Mavericks is a popular surfing spot in California that many Apple employees like to go to to catch a wave – and as we've noted, it's close to where Phil Schiller lives.
An interesting little factoid about Mavericks (courtesy of keen eye reader Tyler G) is that this is not the first time Apple has used the name.
Way back in 2005 the company spotlighted the Mavericks surfing spot in promo material for its then-newly released Aperture software. Surfing images from Mavericks, along with the locale's name, can be found as elements of custom-made Aperture books and also as contact sheets on the original web page announcing the features of Aperture.