Within the last week to week and a half, I noticed this Google search results page was coming up when I searched within Firefox.

http://www.flickr.com/photos/chrismlindsey/4401925538/

It looks more AJAXy, has a location specified (without any action from me), and filter options for news, blogs, videos, etc.

Has anyone else seen this? I have only spotted it at work, not at home.

looks like that:
http://blogoscoped.com/forum/168177.html