From Friday Beer 30 Labs Inc. I present the following…<p>The latest fad is the YO app a one-way communication to friends, where Dude/Sweet is two way, you send a “Dude” MSG and if your posse received it, they reply with a “Sweet” ACK.<p>Just think, one button to send and one button to respond!<p>Hours of fun for you and your friends PLUS there is huge precedence for this type of behavior as witnessed here ->https://www.youtube.com/watch?v=Arf2TxeYPDs&feature=kp