What we actually see is a steadily increase of DS hardware since Christmas 2005. That´s when it started to pick up in Japan. In middle 2006 momentum for DS in Europe increased dramaticly, with the US following now in 2007.
DS numbers are still increasing from month to month and the handheld should reach it´s peak this holiday - probably with sales we´ve never seen in history and a giant amount of huge selling games.
DS is a beast. And everyone of us underestimated it, I think. Nobody could´ve known it would sell that huge. Let´s see if Nintendo can double the handheld market size in the US, too. (In Europe and Japan it already happened)
If we look at the worldwide numbers comparing GBA and DS the difference becomes painfully clear: GBA sales don´t look that spectacular from the point DS started to reach the non-gamers.
DS could really end up beeing the best selling device of all time. If the next DS reaches China and India...I don´t even want to think of it, it´s too crazy.
Edit: GBA Europe sales are not included in the hardware comparison charts. But DS sells on a PS2 - level over here (the numbers are US - like) so it should sell better than GBA over here, too.
