Mobile Technology Unit of the HCI Group has been studying design and valuation of mobile applications, during the last years this unit has been involved with design of a number of mobile applications for useums, Libraries, Consumer decision support etc. Prominent results include the system developed for the Museum of Solomos in Zakynthos the prototype for the academic library of the University of Patras and the beNatural.gr concept that won a price in ImagineCup 2008 student competition.