The Court is unanimous in concluding that Obama's NLRB recess appointments were unconstitutional - he lacked the authority under the recess appointments clause to make the appointments.
Justice Scalia drops a great insult early in his dissent, calling the majority opinion an "adverse possession theory of executive authority." The dissent basically states that the vacancy must occur during the recess between formal Senate sessions and the appointment must likewise occur during such a recess. The fact that presidents have ignored these requirements for years does not make intrasession recess appointments okay.
I'm looking forward to really digging through this one.