The Apple Store at Clarendon in Arlington, VA, will open this Saturday at 10:00 ET, MacMinute has learned. The Clarendon store will be Apple’s second in the Washington, D.C. metro area; Apple opened its very first store at Tyson’s Corner in McLean, VA, another suburb of D.C. Apple’s retail page also lists a store at South Coast Plaza in Costa Mesa, CA as “Coming Soon”, although we have no official word on the opening date. [Updated 15:53 – The South Coast Plaza store will also open on Dec. 1, we have learned.]