I think it will be very hard to match the DS. Sony is likely to be a stronger competitor this time around and smartphones/tablets/ipods will all be eating into the potential customers of 3DS. From what I have seen so far, it also looks like it will have more trouble attracting the expanded audience. The expanded audience is unlikely to care about faster internet or better graphics but will care about things like the low battery life and high price.
To me the 3DS is suffering from 'SNES Syndrome'. The SNES, alongside N64 and GC, were merely better versions of the NES, they weren't the revolutionary products the Wii/DS were. That is what the 3DS seems like, an improved DS , but not a revolution. And glasses free 3D isn't a revolution. Merely evolution of 3D tech.
I wonder wether 3DS will break 100 million to be honest. Hopefully though I shall be proved wrong and it will outsell DS.
