The paper discusses, from a philosophical perspective, the use of Pervasive Computing for supporting the well-being of humans. Philosophy can help computer scientists who are working in this area, to resolve conceptual problems, to take up a considered position concerning ethical issues, and to define clear technological principles. Drawing on the philosophical tradition of pragmatism, questions addressed in the paper are: How is the technological research programme of Pervasive Computing to be defined? How are humans and systems of Pervasive Computing to be modelled as intelligent agents? How do we understand the behaviour of agents as intentional? How is the interaction of humans and systems of Pervasive Computing to be analyzed? How can we define the well-being of intelligent agents? How should systems of Pervasive Computing be designed if they ought to support the well-being of humans?