I saw some details of a retractable screen Phone/tablet so it makes sense that roll up / retractable TV be next.
Given the size of circuitry now and the fact a PC can fit in a chunky memory stick size, the possibilities are tantalising. Imagine sitting down in a coffee shop, reaching into a jacket pocket and rolling out a screen, then popping your matchbox sized PC and projector keyboard next to the screen and starting work.
Now that would be cool.