Today, iRobot is announcing the fanciest, most amazing, and most expensive addition to its line of Roomba robot vacuums. The Roomba i7+ can do two big things that no other Roomba can do: The navigation maps that it makes persist between cleaning sessions, meaning that the robot “remembers” the layout of your home and can use that data to clean in a smarter and more efficient way. And the i7+ can autonomously recharge on a new Clean Base dock that has its own large dustbin and vacuum system, and can suck the dirt out of the robot’s bin so that you don’t have to.