Android is an open source operating system developed by Google and the Open Handset Alliance. It is primarily used in mobile devices like smartphones and tablets. The latest stable version is Android 9 Pie, while Android 10 (Q) is scheduled for release in Q3 2019. Some key features of Android include an integrated browser, Bluetooth, GPS, and support for 4G networks. It currently has over 77% of the global mobile operating system market share. Future versions will focus on improvements for foldable phones, privacy controls, and other new capabilities.