I've heard back from SUNY Buffalo, NC State, U of Arizona and U of Michigan-Ann Arbor. Still haven't heard from U of Washington, Vanderbilt, or Georgia Tech. For Michigan, if you check your status and there is a link that says "view decision" next to "view application data" and "view credentials" then it's been updated. The department sent me a letter on Feb. 16 saying that they recommended me for admission and that the graduate school would be sending me something soon.They eventually sent me something on Feb. 23 saying that I was admitted.