I'm getting in over my head here. Chris, where are you?
I've always heard "smoke on acceleration -- rings. smoke on deceleration -- valve guides."
That says your symptoms are rings.
Now the reason I jumped to that conclusion is that if the cylinders weren't fogged, you can get corrosion of the rings and maybe even the barrels. This could cause a bad seal and therefore blow-by.
The dealer may have looked the bike over thoroughly, but looking inside the cylinders is tough and looking at the rings is impossible without pulling the jugs. I'd assume you could 'scope the inside of the jugs if you had the tools, but I'm not sure how conclusive such an inspection would be. Some FHE would be in order here.
Keep an eye on it. I wish you the best, but I fear you may be being optimistic in hoping the smoke will go away.
Hopefully if you do have a problem, the dealer will treat you right.
Keep us informed.