The idea is that you would have a small, inexpensive touch screen displays throughout your house that could each act as a dedicated viewports for a single Immersive app, somewhat like the concept behind SideShow.  So, you could have a Weather display sitting on the counter in your kitchen, and a Alarms display on the end table next to your bed, and a Calendar display on your office desk. They would all connect though your PC to get the data.