The document discusses user experience (UX) challenges for internet of things (IoT) systems. It notes the "3 C's" of IoT as cooperation and coordination, connectivity, and control. Control of IoT devices can happen through direct hardware manipulation, software upgrades, or remote cloud-based control. When designing UX for IoT, simply replicating existing interfaces is an anti-pattern, and new challenges include designing interactions across channels, algorithms, context-aware filtering, and non-haptic feedback. Thermostats are used as an example where direct manipulation, scheduling, and remote learning capabilities are important UX considerations for IoT devices.