The IBM Watson Project Intu is a cognitive technology that enables developers to extend its capabilities to new form factors such as robots, drones, and mobile devices. With the integration of Intu with the Nexmo Voice API, Watson's capabilities can be extended to reach billions of people who have access only to a telephone. The tutorial provided shows how to set up the Nexmo Voice Connector for Project Intu and enable Watson to have a conversation with users over a mobile phone. To complete this tutorial, developers need to create an IBM Bluemix account, download the Intu tooling application, install it, and customize it to call their phone number using the Nexmo API. Once set up, users can engage in conversations with Watson over their phone, exploring more features such as operational instances and customizing the device to try on other devices like Raspberry Pi.