So much so, that I decided to start using it again.
What is the driving culture? My analyses are that Google is the only company that recognized that the browser is the natural platform independent interface. All Google apps are multi platform (Windows, MacOS, Linux, Android, iOS) because they are browser standards based. This means that on the user interface side of development, they only need to take one set of standards into consideration. On top of this is it is an open source set of standards. So two driving culture's are working here: open source and using one set of standards for human interfacing.