"Since we launched Google Ad Planner a few months ago, you've suggested more ways we could help improve your media planning process. First, we're excited to announce that Ad Planner is now accessible to anyone with a Google account. Second, we've released a number of new features that we built based on your direct input."

http://adwords.blogspot.com/2008/11/google-ad-planner-new-features.html

Alse the Google Analytics team posted a message about the new features,

http://analytics.blogspot.com/2008/11/new-features-are-now-available-in-your.html