I think that Scribblenauts should be recognized primarily as a proof-of-concept that also is pretty fun to screw around with. I mean, you can make ANYTHING. And that IS significant.
Go back in time five years or so, and try and pitch this idea: "Why don't we make a game where you can summon ANYTHING, just by typing it?" And you'd get funny looks, or "hey that sounds awesome but". I mean, that just sounds like an enormous amount of work! Who would ever put that much work into something? CAN you do it? Wouldn't there just be too many words?
Well, they answered that question by saying "No it's not too much work, here, we did it, and we fit it on a freaking DS cartridge". Most nouns you can find in the dictionary are in here, and they behave...at least partially appropriately. And pulling this off was unimaginable five years ago, because well, I would have just assumed it was too hard.
Now I can look into the future at AI-related projects and say "Maybe it's not too much work to manually teach an AI what every word in the dictionary is", or I can say "Once we have holographic/VR technology, maybe we actually can make a holodeck that can summon anything, because it doesn't seem to be that much work to program in every simple noun".