The ThinkPad X1 Nano. (Source: Lenovo)The ThinkPad X1 Nano is a recently-released Lenovo laptop with a 16:10 aspect-ratio display and a weight of under 1 kilogram (kg). It has just been spotted on a German e-tail website in various configurations. They start at prices approximately translating to US$2300 on their new platform. Lenovo launched the…