Sony VAIO X Series Laptops, World’s Lightest?

The VAIO X Series is an ultraportable laptop that weighs in at 1.6 pounds and measures 7.29 inches by 10.95 inches by 0.55 inches with the standard battery. (A high-capacity battery option, when combined with the standard battery, will offer up to 15 hours of battery life, according to Sony.)…