Neural networks are not really new - the concept has been around for years. Google has managed to engineer such a network with more computing power behind it and is bringing it online to augment their existing technologies, such as voice recognition.
TechnologyReviewOther Google products will likely improve over time with help from the new learning software. The company's image search tools, for example, could become better able to understand what's in a photo without relying on surrounding text. And Google's self-driving cars (see "Look, No Hands") and mobile computer built into a pair of glasses (see "You Will Want Google's Goggles") could benefit from software better able to make sense of more real-world data.