On top of the massive streetview update, we just got some new Google Earth aerial imagery for Ottawa (not in Google Maps yet). Imagery date is Sept 30, 2008 (looks to be newer than the 2008 stuff on EMAPS). Highway 7, Kanata Lakes, Soho West, Fairwinds, Mondrian, HPII.... lots of changes throughout the city.
http://www.gearthblog.com/blog/archi..._february.html
It also goes pretty far in Quebec... check out the A-50 extension!
edit: even better, it looks like large swaths of Southern Ontario and Quebec have new satellite imagery. Can't really see too much compared to orthophotos, but much better than what was there before.