Calling James Mielke a "professional" is also giving him far, far, far too much credit. I'm actually surprised he managed to pry his lips loose from Itadaki's anus long enough to even tweet this.

Nintendo knows how 2 make games that appeal to the masses. Its that simple. Theres always a reason why a 3rd part developed game fails on nintedo's consoles:

-GTA chinatown wars=2D perspective-no longer appealing to most consumers/when ported to the psp the game did't even chart in the top 40 whereas the ds version reach #5.

-Madworld/conduit/no more heroes- all fairly good games but nowhere near the standard of 3rd party games on Ps3/360. Also lack of marketing.

Another reason this is stupid is you have to factor in development costs. You can make a DS games with a couple of developers. It doesn't take much sales to make a DS game profitable.

Off-topic, didn't Nintendo patent a new kind of cartridge for an unspecified handheld device just a short while ago? Obviously that's bound to be for 3DS, so I guess the thing'll use cartridges, and not some kind os disc or downloadable games (apart from DSi Ware stuff, of course).
Hopefully they'll make it pirate-proof, too, or moreso than the current DS cartridges, anyway.