If this concept ever comes to life, we might see slidable PCs in the future. Samsung Display CEO JS Choi showed off at Intel's Innovation keynote a new prototype PC that goes from a 13-inch tablet into a 17-inch one. Choi said this "device will satisfy various needs for a larger screen and portability as well." He hinted at foldable being gone on PCs for now, at least from Samsung Display's perspective.
Using this prototype, Intel demonstrated its new Unison software on this screen, which aims to connect Intel-powered computers to smartphones. We don't know if this concept will ever become an actual product, but it does show us what the companies are experimenting with in this space.