Oh wow, what a beautiful form and color on that one! (and Phals. aren't my thing, so that's saying a lot!) Beautiful flower. I'm not sure about leaf! I suppose it could be a keiki, but they don't normally look like that...that looks like the node leaf just took off for some reason! I feel like I've had one do that before, but I've had and thrown out so many phals over the years that it's hard to recall. (It took me a long time to get their culture down right, believe it or not)
I'll be curious to see what comes of it! Keep us updated - and again, GORGEOUS flower!
You see how the keikis emerge from the leaf node on the spike, but are not the actual leaf node itself? I'll be curious to see what's going on with yours. Perhaps it very well is! Different strokes :P