This book constitutes the thoroughly refereed post-workshop proceedings of the Second International Conference on MOBILe Wireless MiddleWARE, Mobilware 2009, held in Berlin, Germany, in April 2009.§The 18 revised full papers presented were carefully reviewed and selected; the papers are organized in four different workshops: Ubi-Islands 2009, the first international workshop on interconnecting ubiquitous islands using mobile and next generation networks; WASP 2009, the first international workshop on wireless sensor networks architectures, simulation, and programming; UCPA 2009, the first international workshop on user-centric pervasive adaptation; and BMMP 2009, the first international workshop on business models for new mobile platforms. Two of this were purely technical, one a mixed technical/end user nature, and one focusing on business models.