3DS is cannibalizing Wii U

[Seece]

curl-6 said:

theshonen8899 said:
The Wii and DS both dominated within the same generation. Your point is moot.

Already addressed this: Wii and DS  were different enough that they did not cannibalize each other. Wii U and 3DS  are much more similar.

How?? I fail to see much difference. Gaming on a handheld and gaming on a tv are so completely different that I can't imagine it's an either or situation for anybody, even if the games are similar ...