@mrstickball: Your argument about multiplatform development would have much more substance if you'd be pointing out how Apple would be doing the same thing.
Yes, the phones with touchscreen are coming down in price, but i could imagine how crappy a game like NSMB would be to play with it. With the 3DS, Nintendo is likely to take the step forward, leaving others to fight with the touch interface.
iPhone has tons of exclusive content, but that's pretty irrelevant because i was talking about Nintendo making exclusive content to its own platforms. When they crank out software that sells hardware, they make money with the software, hardware and eventually with 3rd party licensing. If they would release software to another platforms, that would be less exclusive content for their own, less profit per software sold and less reasons to buy Nintendos hardware.
Going 3rd party would likely bring bigger short term profit, but smaller in the long term.
I don't think we'll see hybridised (as in putting X in because everybody else is doing it) Nintendo hardware, but features that are designed games in mind (this doesn't mean they couldn't be used in any other purpose though).
Apple is making lots of money with their handhelds, but i would point out that Micro$oft is making much more money with their OS business than Apple, which is showing how much money there is in the business.
Vaan pannaan jalalla koreasti.
Nintendo games sell only on Nintendo system.