I finally just did my own Lululemon order to test out the ebates about an hour ago and my rebate has processed, so it does work for Canadians!! I ordered the Pencil Lace Brave Olive Wunder Under Pants ($98).
As you can see here it was on the Canadian Lululemon site, but US ebates site so it converts the CAD to USD.
At some point this afternoon the 6% cash back changed to 8%! I really hope the ebates rebate sticks around during the holiday shopping season.