Here's something you may not know -- OLPC's XO hand crank has never really worked to recharge the kiddie laptop. Why? Well, the previous versions were powered by x86 AMD and VIA processors that pulled too much power. However, things are different now with the XO 1.75 since OLPC has baked in Marvell's 1GHz Armada chip. As a result, the entire system now only pulls two watts of power, and thus the battery can be given some more juice with a few turns of that neon green crank. It's not meant to recharge
