There are a few other studies on this matter both indicating effect and lack of effect of the OLPC in Math and Literacy (this study mentions them in introductio

There are a few other studies on this matter both indicating effect and lack of effect of the OLPC in Math and Literacy (this study mentions them in introduction). Apparently, the OLPC has not produced very good results in Literacy and Maths in Peru and its use must be reviewed but changes in education always take a long time to produce results, sometimes as much as a full generation, and depend on a number of factors. As for the long term effects: I expect that the children that had access to the OLPC will have a measurable advantage in the labour market when compared with children that did not.