Google has updated its Picasa, FREE desktop photo organizer software. The latest Picasa 3.5’s notable feature is the face recognition and the ability to sync it with Picasa Web Albums.

The new Picasa 3.5 contains a facial recognition feature similar to the one already present on Picasa Web Albums. With this new feature, Picasa will create a new sidebar menu list of "People," and it will ask you to name the person that it managed to find in its main "Scanning" menu. If you are signed in to Google account, you can select the name from the list of your contacts, which kind of similar function available in Facebook.

As per Google Blog:

Today, I’m happy to announce that we’re releasing Picasa 3.5, a new version of our free photo editing software. This version gives you the ability to add name tags to your photos, using the same facial recognition technology that powers name tags on Picasa Web Albums. Name tags are designed to help you organize your photos by what matters most: the people in them. Picasa identifies similar faces and puts these into an "Unnamed People" album. From there, you can easily add a name tag by clicking "Add a name" and typing the person’s name. After you’ve added name tags to some photos, you can use your tags to do creative things, like quickly find all the photos with the same two people in them, make a face collage with just one click or upload and share people albums with friends.

In addition to name tags, Picasa 3.5 has integrated Google Maps, so you can easily geotag your photos or view the locations of already-tagged photos on a map. And using our totally redesigned import process, you can now import photos from your camera and upload the photos to Picasa Web Albums in one easy step.

Picasa 3.5 is available for both PC and Mac, in English for now. You can download and try it today at picasa.google.com.