You can also participate in this experiment and can easily play around while putting more color on the google homepage and can also allocate your search result with permanent sidebar like we've in BING (A Search Engine from Microsoft)....
Let's find out how you can install this new version.
- You just need to visit www.google.com (make sure it shouln't be country specific and user must be signed out from any google services)
(Image 1) - Before
- Than paste the following into the address bar of your browser opened up with google.com
javascript:void(document.cookie="PREF=ID=20b6e4c2f44943bb:U=4bf292d46faad806:TM=1249677602:LM=1257919388:S=odm0Ys-53ZueXfZG;path=/; domain=.google.com");
After performing this task, you instantly become a new participant of google's latest and more all en-compassing prototype test- the one with a new logo, buttons, and always visible left hand sidebar with results... I'd mention again (LIKE BING) :) lol
if your above script executes successfully, you would experience a brand new User Interface like following.

(Image 2)
(Image 3)
Screenshot Source - Special Thanks to Philipp at Blogoscoped
Your results may vary based on your browser type since this script appears to work only in Firefox
As an experiment, I tested the search string on various browsers:
Results:
Chrome: Fails, uses old layout
Firefox: Works, shows new layout
IE: Fails, uses old layout
Opera: Fails, uses old layout
Safaris: Fails, uses old layout
(This was done on a 64-bit version of Vista with SP2)
This new look got mixed response from all users around the world, Some of them really liked the new look and some of them just didn't .... the people who don't like this new face complain about the colours and find it quite similar to BING, few of them said if they want to use a Bing like interface they would use Bing then however they like GOOGLE the way it is. some of them think that Google is facing tough competition from Bing and that's the reason Google is following up the Bing's way to save it's monopoly in Search Engines category.... and at the same time other bunch of people find it really cool and classy since they were sick and tired of looking at the same page for over 10 Years....
Well, in my view Google has it's own look and identity which makes it very simple and classic for any average user, i think it's good to have a change but users should've freedom to opt for any kind of User Interface based on their comfort level like; google is already providing this kind of combination in it's E-mail Service (Gmail) and Social Media Website (Orkut.com) where user can opt for Old Classic view or recently launched new User Interface (Quite similar to Facebook)
Let me know what do you all think of this experiment and How did you like this peace of Information.
Any comments or suggetions will be highly appreciated.