No, I wouldn't think he was Kandra, that would be almost too strange.. it just seemed that the way it was mentioned in the story made it more important somehow, more than just a gift with people.
@Darnill
I see what you're saying.. but so much of allomancy is based on intuition and "feel" that it might not seem out of the ordinary to just be able to create personas with full backgrounds and motivation as well as pick up dialects instantly (from his perspective).
Again, it's all just speculation anyway, and in all honesty, it wasn't so much the actions themselves that struck me, but more in how other people around them referred to those abilities. I'm just not sure how much has been changed by Harmony(or if he really even has a say in it), or how the God metals work in conjunction with other metals. Or even what the God metals are for that matter. I just know that Brandon has managed to throw me for a few loops in my day
Edit: Actually, I just realized I do know what the God metals are, but not how they would work in conjunction with the other metals. Plus, if I remember correctly, the mist has been known to provide a catalyst for allomancy right?