Nice one ChristophF1!
Good question sky_eye! We've tried to power the RPi form the display's USB port, but it won't have enough power. It would only work if you'd plug in the the USB type B from a power source or computer (which will add another cable)—then it will work.
Hi mutewit, for now yes. We've been thinking about creating a splitter (3D printed probably) to have only one cable running to the frame. We'll update if we (or someone) develops it!
A frame for OpenframeView Instructable »