This document discusses doctors' use of mobile devices and the internet in medicine. It notes that most US physicians use the internet for medical information from their offices and homes, including from mobile devices. It also describes how doctors are using their mobiles for tasks like accessing medical references and records, writing notes, and listening to podcasts for continuing education. The document outlines several mobile health apps that can benefit doctors and patients, such as apps that track medication use from connected inhalers, detect atrial fibrillation via smartphone, and perform basic medical tests and imaging using mobile devices.