I don't want to bring you down, but we are still stuck on IP and our line says:
We started processing ***'s application on January 13, 2015.
That line appeared on August 6th when we got changed to IP along with a bunch of others.
That being said, we are Nov 2014 applicants and many that applied after us have already got a DM so maybe we are just unlucky
It seems like they Ottawa overhauled what IP really stands for which is when the file was actually transferred to Ottawa, does not mean any processing has started on the application, I think May,June,July applicants are reading too much into this status. Likely there were pressured from outside sources to update ECAS more frequently which is why a ton of people saw "IP" on august 6th and are continuing to see it going forward but in reality it means absolutely nothing.
Good luck, and welcome to the horrid waiting game, keep us updated eh