Apple has installed 3D Touch tables in two Apple Stores-s around the world, specifically those in New York and San Francisco, their role being to promote the function Touch 3D implemented by the Apple company in the iPhone 6S and iPhone 6S Plus in the fall of this year.
Touch 3D is one of the important functions that the Apple company has implemented in iPhone 6S si 6S iPhone Plus for users, and the 3D Touch tables in the Apple Store do not have the 3D Touch system implemented, but they are tactile and designed to work in tandem with 3D Touch.
For now, the tables Touch 3D works in tandem with the system from iPhone 6S si 6S iPhone Plus to display a series of waves when you activate an animated wallpaper, but the functionality will probably be extended by those from Cupertino in the not too distant future.
