I was just using Google Local and saw something I hadn't seen before. When I searched for a business, once I clicked the business name in the left column I got the usual address popup over the pushpin. But there's now a second tab on the popup with details. For restaurants, this details tab shows business hours and also rankings which you previously had to go to another page for.

Go here: http://maps.google.com/maps?f=q&hl=en&q=pizza+near+chicago,+il&ll=41.899466,-87.649956&spn=0.180667,0.31826

then click on a business on the left to see an example.

Actually it looks like this may have been around for a while, though I have never noticed it before: http://blogoscoped.com/forum/14283.html

It depends on the search, so maybe they've updated it to gather the "detailed" information more than it used to.