NDP on the Rise

According to the latest Environics poll (of 2,047 Canadians), the NDP's popularity is on the rise.
The significant areas are:

Atlantic Canada +6% , where they are virtually in a 3-way tie with the other 2 main parties with 30% support, vs 29% Conservative and 35% Liberal

Quebec +5% to 17% (tied with the Liberals in 3rd place)

Saskatchewan +5% to 27% - second place to the Conservatives with 39%

However, the NDP dropped by 11 points in Manitoba.

Also, Jack Layton is:
in 2nd place for Best Choice for Prime Minister (19% vs 37% for Stephan Harper)
and has the highest approval rating for leaders (56% vs 52% for Stephan Harper)

The NDP is up 2 points overall (largest rise for any party since the last poll) and the Conservatives are down 4 points (largest drop for any party since the last poll), since the last poll in June 2007