Based on OkienkaTest app from Dariusz Kluska, this demo runs one application per connected display. It also takes care of dispatching input events to the proper activity.
The appplication use ActivityView for embedding multiple activities inside one application. This allow to create multiwindow solutions for Android.
On the hardware side, it is using a Nitrogen6x along with two 7" displays (LVDS Hannstar and RGB Okaya)