This app (2 Tablet Pong) uses your internet connection to register some anonymous usage metrics to a service called MTIKS ( It uses your WiFi or Bluetooth connection to connect to your opponent's computer so your name can appear in the score list on your opponent's computer. The app will assign you an annoymous Id and will transmit that Id plus your name and twitter handle to your opponent over that connection. Since it cannot determine your name or twitter handle, you have to set it it manually in the settings and you can elect to not to provide a twitter handle, enter a made-up name, or just stick with the default name the system provides (???? followed by a number).