It's an interesting little poll,
for some reason currently lacking a proper link to its official PDF file, but Harris-Decima was nice enough to lay out the entire poll in one go here, and the full regionals are here.
Harris-Decima (Federal - May 10th)
It's not what I'd call ground-shattering, because it shows essentially no difference from their last poll, out a week ago, except that the NDP got bumped up a point, apparently from the "Others" column.
Even the regionals show little difference. Ontario is 32% Con to 31% NDP and 28% Liberal, and their last poll it was 33-31-27.
Quebec this time is 38% NDP, 27% Bloc, 14% Lib, and 12% Con. Last time it was 39-29-14-10.
Whoopee. Why this poll is getting fanboys, I have no idea. It's exactly the same damn one as last time. It's like Harris-Decima re-released the last poll with more regionals and a couple of new numbers.
Full regionals below: