I have a feeling this may be on a new model DS with internal storage of some kind, possibly remove the GBA slot but offer these and other platform games via Wii VC - until then we'll probably have to settle for the Ds demo service.
Those people that think they're perfect give a bad reputation to us who are...
"With the DS, it's fair to say that Nintendo stepped out of the technical race and went for a feature differentiation with the touch screen, but I fear that it won't have a lasting impact beyond that of a gimmick - so the long-lasting appeal of the platform is at peril as a direct result of that." - Phil Harrison, Sony