the google apps aren't entirely linked to Android a priori. In practice it's always bundled, but they can be seperate.
The Messaging app has always dealt with SMSs, Hangouts replaced the google talk app, which never did SMS integration because it was supposed to be a chat client for google's network. The strategy's changed, and so there's this transition period.
The Messaging app has always dealt with SMSs, Hangouts replaced the google talk app, which never did SMS integration because it was supposed to be a chat client for google's network. The strategy's changed, and so there's this transition period.