I don't get it but my GV with GrooveIP is still working, the wife just called my GV number and I talked to her. I did get message about updating GrooveIP but I didn't install it, it may stop it from working!
***EDIT***
Well, I rebooted the phone and that automatically updated GrooveIP, now I can't make those calls. I didn't think to set it up to not auto update.
What is the word from Google and Hangouts? I'm on Tmobile's $30 plan with 100 voice minutes and need to decide if I should upgrade to more minutes!