Each team now has a channel named after the team that everyone on the team who can use Walkie Talkie is in, including people who join later. It is listed first, starts in Live, and the team's admins can rename it or choose who speaks. Anyone can leave it; it then waits under Channels you can join, and someone who leaves the team leaves it too.
Under your conversations, People on your team lists everyone on it, the people you talk with first. Choose someone to open your conversation with them. On Walkie Talkie now shows who has Walkie Talkie open. In a team this replaces Start conversation; New group stays in the page bar.
In Personal, the first steps (turning on your talk page and inviting someone outside your team) are now choices: each has Skip, and neither is needed to talk with your teams. A team admin who is alone on the team gets steps to invite people and say hello in the team channel.