I will never understand why Google fails to see the benefit of GVoice.
I've used it for years and it's enabled me (less and less so more recently because they don't update it) to import my age old cell number into GVoice and essentially switch between land lines, onstar, cell phones, work phone, you name it seamlessly.
And the problem is ever increasingly Android.
Take android wear for instance. Your own platform, your own service, and still no Wear support. So when I want to send a voice activated text/response I'm SOL and have to use the cell number (and plan, more irritatingly, as it means I have to pay for text messaging on it) powering the phone as opposed to GVoice.
Making a call isn't quite so bad as the phone seems to be the one handling that request (oddly the phone handles calling providers but the watch handles text providers...?).
I would GLADLY pay for GVoice it is that insanely useful. But despite a sizeable base of very engaged users Google seems content to just let it waste away. Even though after all this time there STILL is not a real competitor.