Dolby has facilities all over America, and indeed the world. For its latest Atmos event, we spent time at two buildings in Burbank, California. One housed a small demo cinema, which you'll see next, and the other had a home-theater setup.
This is the room they set up for the Atmos home-theater demo. Note the ceiling speakers (there were two more out of frame). It was what they call a 7.1.4 setup, the last figure being the number of ceiling speakers.
Note the upward-firing driver of this Atmos-enabled speaker prototype.
Dolby says in addition to dedicated speakers, users will be able to add up-firing "Atmos modules" to their existing speakers, and some manufacturers are even planning to bundle these with Atmos receivers.
In a few clicks you'll see what some production models will look like.