If it had a face it'd have a mouth, and if it had a mouth it might scream whilst pointing one of its twitching, chalky-white fingers at us. Clone's android (they call it an android, not a robot ...

While other brands are busy attaching arms to their robovacs, iRobot's understated innovations are more genuinely useful.

Once that test tube makes it through the window, it's handed over to robots backed by a vast AI ... each containing lines of shiny white boxes working together in untouched harmony.