Glass OS (Google XE) was a version of Google's Android operating system designed for Google Glass. Launched April 11, 2013; shut down June 20, 2017 — it lived 4 years. One of 11 Google products killed in 2017. Glass OS was a version of Google's Android operating system designed for Google Glass. "glass-omap" Tag is used in referring to the modified Android code which can be found inside Kernel Repository. Glass OS was discontinued on June 20, 2017. Wiki link Data: Killed by Google (killedbygoogle.com, MIT).