The mobility user experience is all the feeling which the user has got by the usig of an application or a website on a smartphone. This feeling has to be great to give a wonderfull image of the brand, the society or the product. It pasts mostly by the design and the ergonomy.
If your website is responsive and look nice, your visitor get more satisfaction and it influence him to come back ! It’s a real challenge for the company to propose apps and website with good mobility user experience mainly with the smartphones’development.