Android :: If Have Unlimited Calling Set Up On Android Phone - Do Not Upgrade Google Voice

Google Voice Blog: Faster dialing with Google Voice on Android and Blackberry devices

If you, like me, have your outbound Google Voice access number set as one of your "Family and Friends", you'll find that all outbound calls are currently free (since Verizon sees them as going through the outbound number, regardless of who you actually call). However, this new method assigns a personal number to EACH contact.

So if your girlfriend or brother already had Verizon, and you didn't use Google Voice, it would be free calling.

But if you called them with the old Google Voice application, they would both appear on your bill as calls to your Google Voice access number. (So if you had that one number on your Friends and Family line, you could call both of them -- and anyone else -- without using any minutes.)

HOWEVER, if you upgraded, your brother essentially has 1 non-Verizon number, and your girlfriend has another non-Verizon number, so even though they're both Verizon users, you're going to get screwed over with minute usage.

Keep an eye out for these things! Google either needs to work with Verizon (and AT&T, etc.) to fix this gap, or they need to keep it an option to use a single outbound access number. I know I won't be upgrading my Google Voice app until they fix this.