Kim Clinkunbroomer posted a question on Google+ asking if this is a new feature. The ability to visually and easily see the exclusions within location targeting on a map within the AdWords radius targeting feature.

Here is a picture, you can click on it to enlarge:

You can quickly see locations within your radius targeting which are excluded from being targeted in your AdWords campaign. Pretty cool!

Kim wrote:

I think she would know if something is new or not but who knows, even the best of us miss new features.

Forum discussion at Google+.