MSI has new slim notebooks in town which seem ready to battle against the MacBook Air. The new machines are the X-Slim X400 and the X600. These are 14-inch and 15-inch laptops which will come with Intel’s Consumer Ultra Low Voltage processors, a 16:9 ratio, LED-backlit displays, Blu-ray graphics and 8-cell/9-cell batteries. What more do you need? The prices and arrival dates haven’t been revealed yet so bear with us..