California telepresence company RoboDynamics recently created a new personal robot, called Luna.Luna is just over 5 feet tall and weighs 65 pounds. It has an 8-inch LCD screen, camera and microphone systems, as well as 10-bit wheel encoders and a PrimeSense 3D Sensor.It runs on a Linux-based system called LunaOS, which has open source code. So user can give new orders to his robot, of course if they know this program.Luna can work for four to eight hours on a full battery charge. It can carry a tray like a waiter. Luna is a personal robots, which help on household.