The app does not seem to be compatible with smartphones so you would need one of the larger display devices to get it to work.
Features:
Catalogs for everyone: Apparel & fashion for men, women, and children; beauty; jewelry; home goods; gifts; and more to come!
Rich media: View products up close, tap tags for price and details, view additional product photos and videos.
Easy purchasing: A single tap lets you find a product nearby or visit a merchant’s website to make a purchase.
Get notified of new issues: Favorite the catalogs you love and get notified when new issues arrive.
Get creative: Create collages of products you’ve saved from different catalogs. View other collages for inspiration.
Share with friends: Email a product or collage to your friends.
Google recommends using this app on a fast Wi-Fi connection as it is pretty bandwidth intensive.