A DigitalPoint forum post displays a screenshot and information about the new Google AdWords quality score column. In my opinion this is an excellent feature to indicate an individual keywords quality score as either poor, OK or great.
“Quality Score Column
The Quality Score column displays your keyword’s Quality Score to help you monitor your keyword relevance. This is a customisable column that is disabled by default for new accounts. It can be enabled at any time.
Each keyword will be labelled with one of three possible Quality Score states: Great, OK or Poor. Your ads may be performing effectively and with lower costs if your keywords have Great or OK Quality Scores. However, keywords with a Poor Quality Score may need to be replaced with more specific keyword choices. If you do not want to replace poor quality keywords, you can try optimising their associated ad text and landing pages.”