The Kindle didn't have a touch screen for the first few generations; input was done through a mini Keyboard or through a Home button. In 2011, Amazon introduced the first touch-screen Kindle, calling it Kindle Touch. This new device was sold as a more expensive alternative to the regular Kindle. In 2012, as technology became cheaper, Amazon dropped the price of the Kindle Touch, started to refer to it just as Kindle, and stopped producing the non touch-screen devices.
However some Australian retailers still refer to the Kindle as Kindle Touch and this leads to confusion, especially because we follow Amazon's naming conventions.
The Kindle Touch is a discontinued device from 2011. The manufacturer's (Amazon) naming convention is to call the basic Kindle with touch-screen just by Kindle.