Nintendo President Satoru Iwata recently spoke with Reuters after the launch of the Wii in Japan. In this interview, Iwata indicated that stronger than expected sales for the DS may help take Nintendo past their previous earnings estimates. There was some worry from both Nintendo and market analysts that the launch of the Wii might leech away sales from the DS; so far, it looks like that hasn’t happened. Instead, the momentum Nintendo has accumulated with the DS may be driving the popularity of the Wii up through a halo effect, much like Apple experiences with the iPod. It is still too early to tell if that is the case; consoles usually will see strong numbers at launch. Until the market has time to shake down, it will be hard to see how the DS and the Wii affect each other’s sales.