Service-Oriented Computing holds great promises to realize the vision of on-demand services available anytime and anywhere. It is still not clear, however, when and how the existing systems will benefit from this new wave. The problem is particularly acute for the software embedded in myriad devices. This work charts a roadmap for migration of legacy software to pervasive service-oriented computing. A key idea is to achieve integration even at the presentation layer, not only at backend layers like application or data. This requires re-inventing the popular mashup technology for the enterprise level. Domain-Specific-Kits, which has been originally introduced within the context of software factory automation, has been reshaped as another enabling technology towards migrating to the service harmonization platform.