ACM HotMobile 2014, the Fifteenth International Workshop on Mobile Computing Systems and Applications continues the series of highly selective, interactive workshops focused on mobile applications, systems, and environments, as well as their underlying state-of-the-art technologies. HotMobile's small workshop format makes it ideal for presenting and discussing new directions or controversial approaches.

We solicit submissions of papers that (1) focus primarily on applications and systems and (2) propose new directions of research, advocate non-traditional approaches to old (or new) ideas, or generate controversy and discussion. We particularly look for position papers containing highly original ideas in the topic areas listed below. However, papers describing other challenges unique to or exacerbated by mobility are also welcome.

• Operating system and distributed system support for mobile computing
• Coordination, aggregation, and spontaneous interaction of mobile devices
• Novel applications, environments, and devices supporting mobility
• HCI issues related to mobile computing
• Security and privacy of mobile computing
• Management, configuration, and deployment of systems supporting mobility

Submissions describing new lower-level technologies are welcome if they focus on how the technology is being used or integrated into a system or application.

ACM HotMobile 2014 will be a highly interactive workshop. Submissions will be judged based upon originality, technical merit, topical relevance, and likelihood of leading to insightful discussion at the workshop. Presenting at HotMobile is a good way to get early feedback on research ideas at least one year away from a full-fledged conference submission to ACM MobiSys or other high-quality conferences. A full-length paper on the same topic submitted to a conference in less than a year is unlikely to include sufficient new material and more mature ideas.