I'm a March applicant and we hadn't received SA yet so my wife (she's the sponsor) called today. Sounds like all is good; she said the application was in Ottawa, so I'm assuming we got SA and someone just messed up and forgot to note it in the system...she said it was odd there wasn't more in the system for SA and she didn't outright say we had SA, but I'm assuming it wouldn't be in Ottawa if all wasn't OK and the person was pretty positive sounding on the phone. She said we'd get an email from her within three days.
What I actually found more interesting is that as my wife started with our story, the agent said they were working on applications from January 24. So I think she thought my wife was asking about the PR application, not the sponsorship part, until my wife corrected her. I thought I would post this information since there has been a lot of wondering about some January applicants getting final approvals before people from the last quarter of 2014.