Thanks. Unfortunately, I'm pretty sure now that my original analysis on how it's performed was wrong, because you can see Samus dashing around normally in one of the videos. Of course, I based the whole idea behind its mechanics on hearsay about that tripping-while-dashing thing that Gimpy kept going on about in his thread, which they've now failed to reproduce (as far as I know). So I don't really have anything to go on anymore.
However it's done, though, it seems like it might be reasonably useful for Link, in theory. I can sort of picture running at someone, braking outside of their melee range, and then f-smashing or something. Of course, Link's dash isn't that fast to begin with, so SHFFLing neutral- or forward-aerials might still be better. With his traction, though, it has to at least be better for spacing than wavedashing was. I guess we won't know until someone actually figures out how to do it. With his traction, though, it has to at least be better for spacing than wavedashing was.