Microsoft Lumia sales come crashing down at minus 81%
Still, the company hasn't given up on smartphone-related activities. It patents cutting-edge concepts such as foldable devices, and is rumored to be developing a long-awaited Surface phone, in addition to working on assorted Android and iOS apps that are generally well-received. MS is also big on machine learning, natural language processing (think Cortana), and entertaining technology like HoloLens. So even if its smartphones never end up capturing significant market share, Microsoft will have ways of staying relevant in the mobile technology industry.