... to delay an execution pending further review. Don't read too much into it: first day on the job, doesn't have a full complement of clerks yet, still getting the feel of things, who wants to kill a guy? After all, Alito appears to be a nice enough guy with decent intentions; it's not his fault that his ideology will lead our nation inexorably into fascism, dictatorship, weakness, collapse, and ruin. Or he could be a true Catholic pro-lifer: anti-abortion, anti-death penalty, the works. Though I'm not holding my breath.
A quick rundown of the coming docket that he may affect can be found HERE.