Google has added, Symantec's Norton Security Scan, which detects and removes viruses, and PC Tools' Spyware Doctor Starter Edition, a top-rated anti-spyware utility to it’s Google Pack. Both of the new additons to Google Pack are free and include automatic protection updates with no paid subscription required.
Google Pack screensaver has also gets updation. Now you can turn your computer into a digital picture frame that displays pictures from photo feeds—continuously updated streams of photos from the web. Many of your favorite photo-sharing sites support them already, so it's easy to keep in touch with your friends and family this way.
Source: Google Blog