Touch screen only controls? My interest just shot up from "non-existant" to "existant"! Touch screen only DS games are my favourite, because they are the most comfortable to play, just sit the DS down somewhere and poke it, any type of button pressing means you have to lift up the DS and support its entire weight, which isn't good for extended play in a TRADITIONAL HARDCORE LONGTIMERS game like Starfox.
BTW i've always seen Starfox as one of the more "casual non-gamer" (ugh I hate these stupid labels Ian has printed out) franchises from Nintendo.