Michigan's ban on marriage equality has been ruled unconstitutional. The state has asked for a stay.
--More to come--
2:42 PM PT: You can read the opinion here:
2:44 PM PT: There is currently no indication that the decision has been stayed.
2:46 PM PT: In its map of the recognition of same-sex unions by state, Wikipedia has Michigan dark blue, suggesting that same-sex couples there can currently marry.
2:49 PM PT: pdogcomedy has a link to a petition asking Michigan's executive not to ask for a stay:
2:51 PM PT: Correction: the petition asks Michigan's executive not to appeal the decision. My apologies for the error.
2:59 PM PT: It appears that Michigan has already filed an appeal.