Thanks to all of your fabulous advice, the forums have really been a valuable resource as we have gone through the application process!
I have good news to share
My husband is the applicant, from the US, and I'm sponsoring, we live in Calgary.
Timeline - App sent April 4 2012, received April 11, 2012.
-AIP via email Oct 11 2012
-OWP issued Oct 11 2012
-Medicals sent upon request ~ Oct?
-DM via email April 4 2013, and several days before being updated on Ecas.
-contacted via snail mail April 10 2013
-interview in Calgary July 3 2013!!
I'm celebrating every day, but my husband prefers to wait until after the interview before believing it
Good luck to all the others who have yet to receive their good news!!