It's the price point, entirely. 3ds is pretty expensive.
[1] http://games.yahoo.com/blogs/plugged-in/nintendo-3ds-young-e...
This quote just seems to revoke the whole idea of making a 3D capable console in the first place:
"The new Nintendo 2DS system gives you all the features of
the Nintendo 3DS and Nintendo 3DS XL, minus 3D viewing"
What a clumsy way to phase 3D games out of their product line.Then again, I haven't actually used one really, so I'm not sure.
I probably won't happen because Nintendo is known to force the developers to use their gimmicks, but most of them are probably thinking about it.
I would also like some information about the hardware. Will it have the same processor and/or GPU? The 3d effect spends some resources, so will there be games that run better in the 2DS than on the 3DS?