@lstormy10, Let me also add that the forecast from Nintendo for the end of their current fiscal year in March '08 is a bit over 81 million units sold worldwide (28 million in '07 fiscal year alone), so if you look at the fact that they have exceeded forecasts multiple times and the fact that the DS will most likely continue into at least 2009 (I would suspect the next DS would be launched at the earliest in holiday 2009), getting 110 to 140 million is not over estimating if the DS at least maintains its current sales rate (let alone increase its sales rate or have sales increase due to other factors).
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Let me also add that the forecast from Nintendo for the end of their current fiscal year in March '08 is a bit over 81 million units sold worldwide (28 million in '07 fiscal year alone), so if you look at the fact that they have exceeded forecasts multiple times and the fact that the DS will most likely continue into at least 2009 (I would suspect the next DS would be launched at the earliest in holiday 2009), getting 110 to 140 million is not over estimating if the DS at least maintains its current sales rate (let alone increase its sales rate or have sales increase due to other factors).