This study examines the achievement outcomes accompanying the implementation of a Grade 3 laptop or so-­called "ubiquitous computing" program in a Quebec school district. CAT­3 reading, language, and mathematics batteries were administered at the end of Grade 2 and again at the end of Grade 3, after the first year of computer implementation. Overall gain was found in all three content areas, but was differential when compared with the norms of the CAT­3. Additionally, some evidence suggested a differential gain for lower and middle-­level learners during the school year. Teachers were administered an instrument called the "Technology Implementation Questionnaire" (TIQ) that assessed the purposes and extent of technology integration. Negative correlations were found in reading achievement gain for items associated with the higher use of communicative, evaluative, and creative uses of computers. Open-­ended teacher responses indicated the need for more professional support for instructional implementations of computing.