Google Voice was gmail-only for a long time. Google Plus was as well. Currently, I am waiting for Google Now's gmail integration to get on apps already: http:

Google Voice was gmail-only for a long time. Google Plus was as well. Currently, I am waiting for Google Now's gmail integration to get on apps already: http://support.google.com/nexus/bin/answer.py?hl=en&answer=2839491 http://support.google.com/nexus/bin/answer.py?hl=en&answ... Those are just services that have/are affected/ing me; I'm certain there are plenty of other examples.