The title is a quote from Clifford Stoll, astronomer, computer expert and high school teacher who argues that you don't learn with computers but with books and great teachers.
I tend to agree with him. Computers are mere tools, great tools that are fun to tinker with. But outfitting entire classrooms with computers will not enable the student to learn more or better. Thinking that computers are an integral way of how we learn in the future is as wrong as believing television changes the way we learn.
Stoll even suggests that in most cases computers are only entertainment devices and if you think about it is true more often than you might realize or want to admit. Students should definitely learn to use computers but they can not replace good teachers so in my opinion computers should be treated as tools like a hand calculator or an oscilloscope you bring in for physics experiments. So laptop carts seem to make the most sense.
A very interesting talk by Clifford Stoll where he explains this opinion can be found here:
http://video.google.com/videoplay?docid=-666540182028461233