Not quite. But the concept is alive and well.
Apple’s magsafe power connectors are a good thing, allowing your power cord to disconnect itself from an attached device when you trip over that device’s power cord.
In Britain, designer Konstantinos Ladas has developed a concept using an internally reinforced cable along with a PVC housing that lets power cables attached to various devices be safely pulled, by the cord, from the wall socket.
Just a very simple concept, really, but simple ideas are often the best.