I'm tempted to get one just to play with the sensors for possible drone use. From the announcement: "This unique 360° vision system uses complex mathematics, probability theory, geometry and trigonometry to map and navigate a room. So it knows where it is, where it’s been and where it’s yet to clean." I don't know exactly what this means, but I like the sound of it!
From Core77: "Coupled with infrared sensors that detect obstacles, data is generated. Some 31 Dyson robotic software engineers spent north of 100,000 R&D hours figuring out how to turn that data into a mapping and navigation system, accurate to "within mm," that sets the machine on a minimal-overlap, lawnmower-like course."