An anonymous reader quotes a report from Neowin: Last week, details emerged of Microsoft's plans to develop a single, unified, 'adaptive shell' for Windows 10. Known as the 'Composable Shell', or CSHELL, the company's efforts were said to be focused on establishing a universal Windows 10 version with a standardized framework to scale and adapt the OS to any type of device, display size or user experience, including smartphones, PCs, tablets, consoles, large touchscreens, and more. Today, Petri reported that Microsoft is working on a new shell for Windows known as 'Cloud Shell'. According to internal documentation referred to in that report, Cloud Shell is described as a "lightweight version of Windows designed for the modern computing world." It also hints at plans to introduce the Cloud Shell sometime in 2017 -- but little else is known about the new shell besides that. Cloud Shell is said to be connected, in some way, with the Windows Store and Universal Windows Platform app framework, and the report speculates that it may also be related to Microsoft's plans to bring the full version of Windows 10 to mobile devices with ARM-based processors, which it announced in December. However, the cloud nomenclature, and the reference to this being a 'lightweight' version of Windows could hint at a 'thin client'-style approach, in which the Windows 10 shell could be streamed from Microsoft's Azure platform to any device with an internet connection, while its cloud servers remotely handle all of the processing and storage requirements of each users' tasks.