Picasa Albums for Windows 8 will let you view the pictures you have stored on Picasa, access your contacts and find photos taken by other users.
The Picasa for Windows 8 home screen is divided into 3 parts to access this content - Albums, Recent and Explore. When you look into the options, you'll see that you're able to view your images in slide shows, zoom in on photos, comment on them, view the exif data or share your pictures with a variety of other applications.
This program can no longer be downloaded. Take a look at