I'm so so Glad they brought the SD Card back, but how they have is such a Game Changer. For one where they have placed it means, They can add more to the belly if the S7 beast. And with not needing to open it has its advantages. But having a little tray that can hold a sim and sd card or 2 sim cards is brilliant. The popularity of dual sim phones is growing globally, it's great for travellers and business people. It's already well established in some continents like Asia and South America., where Dual sim is the norm. This could cut out the need to make dual sim variants of the S7 and future phones.