Mobile communication technology and its rapid growth in the field of E-commerce have set an unprecedented tone in the growth of information and consumer science. The current E-commerce applications invariably combine the advancements of the current web technologies and the novelty of mobile technology to offer advanced level of service and business propositions to the general public and target the customers who are constantly on the move. Though libraries are perceived to be the sanctum sanctorum of man’s quest for Information, where humanity has traditionally journeyed to quench their thirst for knowledge, today’s information society seems to be living in a world where the library is engulfed in their own mobile phones right in their very own pockets. This paper looks at the overall impact of mobile services and applications in libraries and looks at the specific area of Reference services in the libraries where the potential, demand and opportunities are more for mobile applications.