>Other than Google has a bad history with 1) Putting products in beta and then killing them (http://fox.wikis.com/wc.dll?Wiki~GoogleBandWagon~WIN_COM_API) and 2) >Making massive changes to languages (There will be no upgrade path from Angular 1 to Angular 2), I can't think of any reason.

On the other hand jQuery has been here forever. Chrome is moving forward. They give back to open source.

Johnf