This is Pahlish Electrique:
I really like Pahlish and I shouldn't even look at their website because it makes me want to order stuff. (And I am on an official no-buy status for the first time in a while because I went nuts with Pretty Serious the other night - that was Friday night and the polish arrived Monday and I've already got pictures coming up for that.) This is the only Pahlish I have that I didn't buy myself - Karen D gave it to me, back a couple of years ago when I last saw her in person. I think maybe she said it came from one of their monthly duos, which means it's probably really hard to find.
Anyway, you can see the white much better on this side of the bottle:
Added: previous swatches here.