Global Laptop U Over 250 universities in North America offer academic programs via laptop computers or notebooks. This form of "ubiquitous computing" began in the mid-1990s, as technology costs dropped and suppliers like IBM promoted the concept. The introduction of technologies for teaching requires systemic change in infrastructure, in the roles of support staff, and especially in the roles of teachers. For a Laptop U operation to succeed, faculty have to modify their sage on the stage role to participate in the development of multimedia materials and to mentor their students...