Microsoft might not be making a big splash at MWC this year, but that doesn't mean it's completely ignoring the opportunity to show some signs of life. While it does have a few products, they aren't that big. Well unless you mean physically big. The tech giant is unveiling the new Lumia 640 and its giant cousin named, what else, the Lumia 640 XL. But don't get too excited yet about these smartphones as they aren't yet running what would eventually be Window 10 for phones.