ThinkPads have long featured fingerprint readers that help automate the process of user log-in. The 2010 version, available on the W701 and some others, is even more convenient. First, users no longer need to press the power button first -- a simple swipe of their finger can boot their ThinkPad or wake it up from sleep. Second, the reader now shows an orange light to signal when a swipe has failed. Lenovo says the enhancements should save users a few seconds of time every time they start up their ThinkPad, which can add up.