Samsung is anything but a stranger to dual-SIM cell phones. In 2007, it was the first well-known manufacturer to release such a handset – the SGH-D880 Duos, which paved the way for a long list of successors to follow. Fast forward five years into the future and the company's dual-SIM lineup now includes both smartphones and feature phones, with the Samsung Galaxy S Duos being the latest Android-powered addition ...
