I'm still not taking the Iraqi calls for a timetable for a US withdrawal
all that seriously. It smells like a negotiating ploy on the SoFA. They're not outlining a date for withdrawal, not giving a plan or any specifics, just lobbing out this incendiary embarrassment to the Bush administration (and its political successor John McCain.)
But it is notable that the negotiations are at a point and the Iraqis feel secure enough to do this.
(Plus calls for US withdrawal always help Maliki domestically.)