Panasonic's triangular robot vacuum aimed squarely at corners

Panasonic has entered the robot vacuum market with a pricey wedge-shaped droid that gets deep into corners.The MC-RS1 Rulo has a roughly triangular shape with rounded sides and corners and a dust sensor that are designed to help it do a better job at cleaning up than rival robots, according to the company.The unit can move from side to side in tight spots while attacking dirt with two rotating brushes that stick out from its corners. They push dirt toward a cylindrical sweeper on the undersid