What if WiiU (controller) comes with a DS slot?

[Dr.Grass]

d21lewis said:

Dr.Grass said:
Erm, DS slot on the controller would be better. I'd buy into that idea.

THIS!!  And the DS game could be entirely playable on the controller with both the top and the bottom screen displayed on the controller OR the top screen on TV and the bottom screen on the controller!!  It's perfect!!

 

I guess there would be two possible ways of getting it to work:

 

1) The Wii U tablet has the necessary architecture to run DS and or 3DS games all by itself

+ no lag + Console can be used at the same time -

- tab will cost a lot

2) The reader in the tablet streams the data to the console which processes it (probably a virtual machine) and streams it back to the tablet

+ Only added cost to the controller will be the card slot + It would just be friggin awesome

- Some lag (I suppose) - Playing Mario 3DS in your bedroom means no-one can play Skyward Sword HD in the living room

It would be cool if there was a seperate version of the controller that retailed for say $40 more that had this function. All in all, I think option (2) is entirely possible and an enticing idea to boot. I guess it'll never happen then :/