Though Panasonic's Let's Note laptops are only sold in Japan, it's nice to know how the other half lives, isn't it? The company just updated three models in the lineup, including the 12.1-inch SX and NX, along with the flagship 14-inch LX. Panasonic claims the latter is now the world's lightest 14-inch notebook at 1.14kg (about 2.5 pounds), provided it's equipped with a 256GB SSD and lightweight batteries. Despite that lack of heft, it still manages to pack an Intel Core-i7 CPU, a 1,600 x 900 display, 4GB of RAM, and an 11-hour battery into the boxy case. The 12.1-inch SX and NX are similarly spec'd, but have a Core-i5 processor option as well (the NX can only be had with a Core-i5). Those models will power along for 15 hours with the lightest batteries, while also tipping the scales at around 2.5 pounds. While excellent, that's still far from the 1.9 pound. 13-inch Inhon Blade carbon -- and let's not even discuss thinness. Pricing and availability have yet to be disclosed.