Great question, great comments. Consensus seems to be that computers are tools and can be helpful if the learning model is right. Specifically, computers can allow for mastery (see Sal Khan on TED) and personalization (see Silicon Valley schools). I think the follow up question is: will the current system evolve to a 21st-century model, where computers can be effectively utilized?
(My answer is no, here's my proposal for a better model: https://medium.com/@prendalearn/nanoschool-a-new-take-on-edu...)