I did end up getting the watch. You can forward your Google Voice number to the watch's number just like you can to your phone and it will ring instantaneously to the watch and phone at the same time (rather than setting up Gear Manager to forward if phone not answered or something). Also if you use Google Hangouts for all SMS using your GV number on your phone you will receive notifications of Hangouts SMS messages on the watch that are sent to your GV number. You can REPLY to these from the watch, but unfortunately without another app you cannot initiate Google Hangouts messages (ChatHub I believe will allow you to initiate messages from the watch if I understand correctly). The catch to being able to REPLY to the Google Hangouts messages is, and this is weird, you must install Android Wear app from the Play Store onto your phone. You don't have to set anything up, but once Android Wear is installed you'll be able to reply to Google Hangouts messages from the watch. There is no easy way to make a phone call from the watch (while not BT-connected to the phone) using your Google Voice number however. The workaround would be to set your phone contacts up with their Google Voice alias numbers - which I'm not even sure where to find anymore - and this will basically bypasses the background step that usually occurs on your phone when you call out via your GV number through the native dialer. Hope that helps.