It's 2007 and still no flying cars. But lawn-mowing robots: If money is no object, take your pick. The latest, in race-car shapes, are programmed to snip grass while roaming the yard like man's best friend, inside the boundaries of an electronic fence. Just cough up between $1,500 and $13,000, and one of these R2D2s works for you. Of course, the size equals coverage. Trump at his weekend manse, for instance, might prefer the BigMow, with five blades in a 48-inch-wide body that hover-manicures five acres. Ironically, at $13,000, its price is just a grand cheaper than hiring a service to handle the same size lawn for one growth season in some cities. Viewed that way, the Lawnbott Evolution, which mows three-quarters of a football field, and the RoboMower, which cuts half an acre, each for a fraction of the price, are both steals.
