Late yesterday, Google started rolling out the updated Places for Business dashboard to new claimants and they have simultaneously redirected some dashboard accounts to the new interface.
Here are some additional articles from around the web about the change:
More details about the improved look and feel of Google Places for Business - Joel Headley (must read)
BREAKING! Brand New Google Places Dashboard – All-in-one Local Listing Management - Linda Buquet, Catalyst Marketing
Improving the look and feel of Google Places for Business - Qasar Younis, Senior Product Manager
Insights for your business (New analytics)
Status of edits in your listing editor Explains edits that could be pending review. It NOTIFIES YOU NOW!
Service area businesses in Google Places for Business This is all changed and MUCH better!
Upgrading your business listing to a local Google+ Page ONE BUTTON UPGRADE TO G+ WIDGET
My articles from last night:
New Google Places for Business: Articles From Around the Web by Mike Blumenthal