"After my first review, the administrators at OLPC were kind
enough to send Mr. Felten the newer model of the computer, the B4,
for me to review. The difference between the two models was quite
dramatic. Between new games, new applications, design changes, and
a few touch ups for the system, the B4 clearly outshines the B2. I
didnâ€™t even know about a bunch of problems in
the B2 until they got fixed in the B4!
"The minute I picked the new computer up, I saw the physical
differences. There are bumps on the handle of the B4. The B2 has
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