At the conference, the company showed how developers can create a single app that scales across all Windows 10 devices, from phones to PCs, automatically adapting to different screen sizes. With the Universal Windows Platform, developers can tailor their apps to the capabilities of each device, integrate Microsoft's assistant service Cortana and Xbox Live into their apps, offer trusted commerce, create holograms, and publish their apps to the Windows Store.
Also as part of the Universal Windows Platform, the company showed Continuum for phones, a system to enable premium phones to work like PCs. The phone can be connected by HDMI to a monitor and the interface and apps adapt to the new screen to offer a more desktop-like experience.
Microsoft said the Windows Store will be a single shopfront for all devices after the launch of Windows 10, offering apps, games, music, video and other content with a wide range of carrier billing options. To encourage more developers to work on Windows 10 apps, Microsoft announced four new software development toolkits aimed at making it easier to bring code for the web, .NET, Win32, iOS and Android to Windows with minimal modifications.
In addition to the developer tools, Microsoft showed the latest technical preview of Windows 10 at Build, as well as its new web browser, called Microsoft Edge. There was no further information on a launch date for Windows 10, apart from the previously stated later in 2015.
