Hi there! I applied to the MMSt at the iSchool, not the MI, but was accepted to the program on Feb 13. I submitted my application in mid December. I wouldn't be too anxious about hearing back! You sound exceptionally qualified for the program. I personally asked for an extension, as I hadn't heard back from anywhere else when I was accepted. It may be comforting to note, however, that they initially provided only 2 weeks to respond. So, the most recent round of offers lines up quite well with the offers sent out previously. I know that the program tends to send out offers continuously, sometimes up until late April. Honestly, I would email them and ask when you can expect to hear back. I've been in contact with them and they've been super helpful and understanding, albeit a little slow to respond.
Regarding funding (or more so, scholarships since there isn't really any 'funding' at the iSchool), I personally haven't heard anything yet. I was advised that I can expect to hear about it mid-late March. I wish you the best of luck! Don't lose hope.