At my school, in my department, some people found out Wednesday night...I'm personally still waiting. And somewhat frustrated that OGS couldn't figure out how to upload all results simultaneously (or at least within a few days of each other!).
It makes a big difference to me. In our department we're guaranteed 18k funding, of which 7k or so goes to tuition. If I get OGS, that means I'm guaranteed 15k from them, 5k from a half TAship, plus my tuition is covered by the school. If I don't get my results posted before the end of the month, that's precious little warning about whether or not I have to come up with $1300 to pay summer tuition (due May 2).