A Magic Wand For Espresso

A food blogger in the New York Times reviewed a new portable hand held espresso maker:

"The Twist, from the startup Mypressi, doesn’t look like much: a handle with an orb, it resembles a personal massager. There’s a double spout familiar from most espresso machines, and a trigger on the handle, but there’s no cord, because there’s no need for power. Instead, the Twist uses a standard carbon dioxide cartridge to force water through the filter basket – the 9 bar pressure comes entirely from the cartridge, which is regulated by a sophisticated mechanism hidden in the handle. Squeeze the trigger and a perfectly dosed espresso streams out of the spouts, a 30-second extraction with a rich crema.  A gimmick? I don’t think so. The shot I tasted was sophisticated and balanced. It was a delicious espresso."