[quote name='Kunikos']The DS is a hot item, but you don't see it selling out anywhere consistently. In fact, from the numbers the DS is outselling the Wii by a large margin.
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To be fair, the DS is probably easier to make. i.e. with the Wii another company (is it ATI?) makes the graphics chip etc., other companies provide the accelorometers for the controls and so on, so there are more places for their to be bottlenecks that limit production capacity.