The Library and Information Services department of the City of Edinburgh Council has been extending its service provision for citizens and engaging with the wider community. This case study shows how it has made innovative use of services and applications (Apps) for mobile devices. It makes it clear that support for mobile devices is best seen in the context of a wide-ranging social media and digital communication strategy. This case study covers the relationship with the digital communications service providers and the suppliers of the library management suite. It also considers other content and services available to mobile devices including as eBooks and audio content