IRobot expanded its popular Roomba line of vacuum cleaning robots with the new 700 series. The three new robots represent the 6th generation of Roombas, and all of them are equipped with iRobot's new iAdapt Technology. Based on the images and the information available, the form factor remained the same, the engineers are sticking with the good old disc shape. The robots got new, stylish outfits, but most of the functional parts remain the same on the outside. There is one notable difference though.