Also got this today with the same funding offer! The letter was dated March 1st (when I got the update on Acorn) but I only received the application update today.
Oh LOL yes - I was asking about where you saw your Acorn update! I've only applied to UofT and Carleton with UofT being my top choice I'm honestly shocked the informal offer came so early since in previous years it looked like people got offers around March 16th/17th/18th.