La clave para el lector es esta: The mobile app acts as a control surface. Files, API keys and Git credentials stay on the laptop, devbox or remote environment while the phone receives status, screenshots, diffs and approval prompts.
En detalle, That changes the workflow from sitting inside an IDE to supervising asynchronous agents: one phone can follow tasks across several machines and environments.
Lo que queda por observar es The release is another step toward coding work that happens off-screen, with humans approving key actions while Codex writes, tests and reports from the machine that holds the project.
Fuentes: OpenAI brings Codex control to ChatGPT for iPhone, iPad, and Android（9to5Mac）, Building a safe, effective sandbox to enable Codex on Windows（OpenAI Blog）; CocoLoop