We've all seen "Concept Cars" - the ones at the Auto shows that pull together a huge number of futuristic ideas. They capture the imagination, but are not in production and no one has any immediate plans to put them into production.
Given that they exist at all, the term "Concept" is really inappropriate. They are not the fruitful figment of someone's imagination - they actually exist. Compare that with this concept kitchen appliance that obviously would require intensive use of polymeric materials.
Since we're dreaming, I'm thinking that if you put your fist deep into the surface you could then have a deep-fryer, and if you rake your fingers along the surface, you could create a grill. But how would you make a panini or waffle with it?