Ok, weird issue. I have two W-T contacts from when we were all beta testing. I have a third friend that just updated his watch and iPhone and has the W-T app but when I add him it says "xxx is not available for Walkie-Talkie. You can only chat with people who also have Apple Watch". We went over and made sure he had the FaceTime app on the phone. He showed me that his watch has a pending invite TO me (which I never get or don't know how to accept). Any thoughts?