As Mariah Carey's song goes: "all I want for Christmas is a loyal house-cleaning robot." Okay, not quite, but we did become hopeful when we saw this photo taken inside Dyson's first London pop-up shop. Sadly, it turns out that the sole purpose of this prototype-testing robot arm is to constantly twist a DC24 vacuum cleaner -- presumably to show off just how great a dance partner your rug cleaner can be. If you've just had your wildest dreams shattered (trust us, we're right there with ya), feel free to pass on a petition to the Dyson engineers staffing that temporary shop -- you'll get to p
