Touch Interfaces are an intuitive way to interact with content and even get routine things done. Touching something to grab it, move it or interact with it comes naturally to human beings. That is one of the reasons why computing systems using the touch interface are very popular. Moreover, people today in most parts of the world are familiar with touch interfaces at the airport, bank ATMs, and supermarket. Store clerks have been using machines with touch interfaces to do their job for more than ten years now.
With the advent of tablet devices and smart phones with touch screens, product designers and user experience designers may have to think about touch interfaces first and point and click next.
Designers of enterprise software can learn a lot from the day to day touch interfaces that regular people use.