Microsoft has announced a unique partnership with China-based DJI -- the world's biggest drone company -- where DJI will create a new software development kit (SDK) for Windows 10 PCs. The SDK will bring full-flight control and real-time data transfer capabilities to over 700 million Windows 10 active devices globally, it was announced during the jam-packed "Build 2018" conference here on Monday, attended by over 6,000 developers.