I have tried to search for previous posts regarding this option, but it didn't seem recently mentioned or popular. Apology if its been talked about.
This is a 8" usb powered and input touch display. This is interesting option to have with Pi, as it could be possible to have a screen for transport, and it leaves the HDMI free for external bigger screens. I know there may be an issue with too much information being transferred using USB, perhaps limiting other usb devices that you'd wish to connect as well.
Officiall supported with windows, but there are Linux drivers available. I am thinking of a portable navi device (from Serial Experiements Lain japanese anime)
Obviously the screen I have choosen is far too big, but to be honest I didn't even know you could get usb Displays! Tell me what you think about the usage of USB Display?