It has been said that a great user experience in mobile phone offerings is a combination of good engineering, marketing and graphical and user interface design. More importantly, it is about keeping the balance between all these elements. This is why the term “trade-off” is a recurrent one in the mobile phone industry. In the current state of mobile device evolution, the UI screen size has reached the maximum deemed acceptable to customers; therefore, the focus by mobile experts is now more on depth-enhancing capabilities such as touchscreen UI with haptic feedback, for example.