Microsoft Edge Web Summit 2017 | Channel 9
Microsoft is developing "Teams" as an "Enterprise Progressive => Hybrid Web App"
in TypeScript and using many open source tools and frameworks.
Web apps on Windows 10 can now run as native apps by using available hooks.
PWA, HWA, Electron, oh my! Making sense of the evolving web app landscape | Microsoft Edge Web Summit 2017 | Channel 9
Progressive web apps and the Windows ecosystem | Build 2017 | Channel 9
Progressive Web Apps and Windows Ecosystem (pptx) - Build 2017 - Windows app development
Microsoft takes its first steps of its plan to migrate Skype for Business users to Teams | ZDNet