They haven't updated their lander yet but Poundcake is live for iOS and Android. Another anonymous mobile chat app: Poundcake lets you create your own rooms to talk with your friends. No signup is required, be in a room in 1 second. It's that fast.
Everytime you enter a room, you are assigned a random icon. You can also join rooms for colleges and trending hashtags on Twitter.
Maybe @jasontezanos can answer some Q's.
Just wanted to mention, we are incorporating Yo into our next version, you will be able to subscribe to any channel and receive a Yo from that channel!
Idea Stash
Pitch Out Baseball for Apple Watch
Pitch Out Baseball for Apple Watch