Use the Scratch OSC Bridge program and the free TuioPad app (for all iPhoney and iTouchy) to play a game of Pong.
2. Get the computer application Scratch OSC Bridge.
3. Download the free TuioPad app to any iThing.
4. Run the Scratch OSC Bridge. The paddle sprite should "say" Connected!
5. Run the TuioPad app, and make sure the port is 3333 and the IP address matches OSC Bridges's IP.
6. Press Start in the app and the green flag in Scratch.