I have just recently installed a Raspberry PI3 B+ with Android and Xibo.
Xibo works like charm but the device itself is a complete disaster.
Raspberry PI3 B+ does not have enough speed to run Xibo smoothly and it also has lot of issues with resolution of the displays because it simply is not capable of using display resolution correctly. It leaves empty on bottom and right side of the screen.
For those who are interested of Raspberry, you will be wasting your time because the device is certainly not worth.
Buying the chip + the cover + the power + the sd card costs as much as a regular android device which does the job perfectly which Raspberry can’t.
Just wanted you to know.