The AdWords team blog has announced the launch of Keyword Analysis page, which provide more information about the Quality Score for their keywords.
The blog post says —The new Keyword Analysis page gives you a detailed breakdown of your keyword's Quality Score and how it might impact your ad's visibility. Specifically, you'll learn how keyword quality and landing page quality are performing and receive recommendations for improvement.
For example, let's say a keyword has a poor Quality Score because your landing page doesn't relate to your keyword. On the Keyword Analysis page, we'll alert you that your landing page quality is low and provide tips on how to improve it. You'll also see your Quality Score rating, your minimum bid, and whether your keyword is showing ads.
To launch Keyword Analysis page, click the magnifying glass icon beside any keyword in your account; then click one of the 'Details and recommendations' links.