Mountain Lion doesn't display Finder preview icons for .ARW files? (RAW pictures taken with SONY cameras)

Question

This is something that I find rather ridiculous, and have a hard time believing no-one at Apple has addressed yet.
Basically the problem is that neither Mountain Lion nor Lion show Finder thumbnail preview images for pictures that are taken with SONY digital cameras.
This is something that Snow Leopard, as well as multiple earlier iterations of OS X used to do without any problem. The professional photographer community who uses SONY professional DSLR cameras is up in arms about this. And we've all been crossing our fingers that perhaps the Mac OS X 10.7.1, 10.7.2, 10.7.3, 10.7.4, or possibly the 10.8 update would fix this issue for us.
Several of us have filed bug reports over the past year or two. See this thread: https://discussions.apple.com/thread/3213982?tstart=0 
This is a flaw in Apple's operating system. Especially considering that there are supposedly 200+ "new features" which were just released in Mountain Lion.
Those of us who work with SONY cameras every day would probably have paid the $19.99 upgrade price for just one "feature". And not even a new one. An old one. The ability to see our pictures in the Finder. Pretty basic stuff.
Hopefully someone fixes this for us with the release of Mac OS X 10.8.1
Please. And thank you.

Answer 1

I can see image icons for all my pre-MtLion images.  These are the folder images (Icons), and all the photo images (icons) on all my hard drives.  IE If I have a folder of 300 wedding pictures, they all show the picture image above the file name in the icon view.  So if I want to open a picture of the "Flower Girl" I can see the image (icon) of the Flower Girl.  Without the image showing all I see is the filename...  Smith-212.tif.  Now with Mt. Lion I CAN'T see any IMAGES (ICONS) on any of the 300 photos.  Just the file names in all the different views.... Icon View, List VIew, etc.  If I have a Folder with 23 more folders inside, they don't even show up either.  I saw a step by step process of selecting the file and right clicking on it and opening it in Preview, then doing a copy and then pasting it on the original image in tghe get info window.  WHAT A PURE PAIN TO HAVE TO DO THIS TO 170,375 IMAGES.
The other issue I have is that 93.5 % of the remaining icons that do exist on my system is that those 93.5 % are so pixelated they appear as a hugh checkerboard viewed through two inch thick glasses..... not for drinking, but the kinda glasses used by a blind man.  IE the remaining icons are so PIXELATED it is almost impossible to tell what they  are.
BEN WELLAND...... What did you do to get this point? 
Thank you, thank you, thank you, to whomever at Apple finally fixed this.
After updating to Mountain Lion 10.8.2, SONY .ARW files (and I'm assuming Pentax .PEF files too) now render proper thumbnail icons in the Finder in list view, icon view, coverflow view, and columns view.
Since this is now a recognized bug, I'm guessing that the free update to Lion (10.7.5) that Apple also just released yesterday (September 19th, 2012) will probably fix this issue too.
Hooray!
I have OS 10.8.2  and nothing has changed as far as being able to see photos / folders as image icons...
rendered  proper thumbnail icons.
I have thousands of photo files that show nothing other that the file names.
The only way I can even see the file is to open it in Photoshop, or open the folder in Bridge. Even then after I open it in PS CS6, and save it again. It still is a "Empty" file...... no render proper thumbnail.
icons 
Any help will be appreciated.