In this photo by Ahn Young-joon, a phone store worker dressed as Santa Claus keeps customers in line as they wait to buy Apple's iPhone 6, in Seoul, South Korea. The device went on sale Friday in South Korea, one of the world's most wired societies, with 85 percent of its 50 million people online and 40 million smartphones. South Korea is also home to the world's top-selling smartphone maker Samsung, which is seeing more competition by cheaper local brands in China and India and by Apple in developed nations.