ZUZ is the native currency of the ZUZ Network. It is a parallel network to the Ripple(c) Network. This means that the ZUZ Network has the all of the same functionality as the Ripple(c) Network. The Ripple Labs(c) has abandoned the whole concept of Gateways operating on the Ripple(c) Network in favor of Banks operating on the Ripple(c) Network instead.
The ZUZ Network was created in order to bring banking level financial technology to the common person and to the small business.
As each new Gateway joins the ZUZ Network and each new brand of money is created, it will strengthen the ZUZ Network as a whole and will bring more value to the ZUZ.