While the thought of "Atmos speakers" on a portable device is laughable, imagine if they came out with Atmos headphones which would work with "Atmos-compatible" devices. Now THAT could actually be kind of interesting.
That being said, I'm sure all we're going to see is a slew of "Atmos" branded phones, tablets, and laptops. No different than my old budget laptops having quote-unquote "Harman/Kardon," "Altec Lansing," or "Beats Audio" speakers. HA!!!