Telecom stores and boutique electronics retailers across South Korea flooded with Apple fanatics all day Friday in hot pursuit of the  iPhone 7 and iPhone 7 Plus, with lines of 200 at some of the biggest stores before opening hours. At a telecom megastore in Seoul’s downtown Gwanghwamun,  25-year-old Yoo Byung-moon  camped out for  four days  to be the first in the country to collect the most popular Apple phone in Korea yet, priced between 869,000 won and 1.28 million won (about $764-$1,125). Some reports  estimated total sales  at 300,000 units on opening day, whereas 10,000 units is considered a success in Korea. Other loyal fans who were quick enough to preorder early picked up their phones in a calm, orderly manner. James Oh, who has a Galaxy S series for work and iPhone for personal use, was one of the thousands to book an iPhone when preorders opened last Friday. The three major telecoms reported record preorders, dou...