I covered this a few days ago at Search Engine Land but now it made it's way to the forums.
A WebmasterWorld user caught Google testing displaying the site's destination URL not at the bottom of the search snippet, but above it, between the title and the description of the organic results.
Here is a picture:

Here is what I see, the norm:

We know Google has tested this with AdWords ads in the past.
Some like the new URL placement and some do not.
Forum discussion at WebmasterWorld.

Comments:
Phill Mc
05/27/2011 02:37 pm
Nice Blog - Yeah I noticed this yesterday with a few other changes to. I put up a blog here http://www.seoconsult.com/seoblog/seo-and-search-engines/yet-another-google-results-page-test.html - let me know what you think.
online coupons
05/27/2011 02:39 pm
RT@ Google Tests URL Under Search Result Title Tag - http://goo.gl/GsTGD
News Flash
05/28/2011 07:45 am
I personally like to see the URL at the bottom. I hope Google do not mess things up.
Rank Higher, Make Money!
05/29/2011 06:07 pm
I guess I am used to the URL at the bottom, but I do think I like it better that way.
Anirban Das
05/30/2011 04:54 am
nice feature..indeed...
Vern
06/22/2011 01:24 pm
Personally I think it makes it quite hard to read the link.
dicemoney
07/01/2011 05:04 pm
Just got this, really annoying, I really like to skim read first, then I look at the URL, this just bugs me out. I could deal with the new black bar, but this totally disrupts me. They are changing everything so drastically, this one kind of just made so confused, I really don't care much about the site URL till the end. It just disrupts my reading, hope the are forced to give you an option to undo that.
good
12/31/2011 06:59 pm
I personally like to see the URL at the bottom. I hope Google do not mess things up.