Hewlett-Packard (HP) on Tuesday unveiled the new Spectre 13 laptop. The notebook, which has been touted as the world's thinnest notebook, is 10.4 millimeters thick and weighs 1.1 kg. The notebook features a 13.3-inch Gorilla Glass screen, a 9.45 hour-long battery life and upto 8 GB of RAM. The cost of the Spectre 13 ranges from $1,170 to $1,250.