As far as we were concerned, Lenovo's ThinkPad X300 was already a stellar ultra-portable Windows-based laptop. Okay, so it no FireWire or DVI ports and opting for a solid state drive (SSD) added a lot of extra cost, but the machine offered performance, battery life, quality, reliability and functionality at a great price. Just four months on and Lenovo has unveiled its successor, the ThinkPad X301. The slim-and-light system, again seen as a direct competitor to Apple's MacBook Air, offers more storage options in addition to DDR3 memory and the latest low-voltage Intel Core 2 Duo processors.