While Roomba's automated approach to floor cleaning might've been novel for its day, its random bumbling is starting to look dated, particularly in comparison to laser-guided, ultra smart vacuums like the Neato XV-11. Well, iRobot is naturally not going to take this lying down, and the company has received a patent for a new "Celestial Navigation System" based on IR beacons bounced off walls and ceilings that the Roomba can track and calculate its position from. It doesn't sound as fancy as Neato's completely self-contained system, and it'll require the setup of multiple beacons throughout the house to make the bot self-sufficient, but we're guessing it req
