HotHardware.com evaluate the features and performance of Lenovo's sleek ThinkPad X300 ultra portable notebook. A quote from the article:

According to Lenovo, the ThinkPad X300 was designed to be the most efficient notebook the company has ever offered, with claims of a 25% reduction in power consumption in comparison to previous X-Series models. To achieve this, Lenovo attempted a balancing act of sorts, equipping the X300 with a low power Core 2 Duo CPU, a Solid-State Drive and an LED backlit monitor. The question is, has the focus on low power consumption come at too big a price, both in terms of dollars and overall performance? Head on over to the site and find out...

>> Lenovo ThinkPad X300 Ultraportable Notebook Review