Ya they were way off pace and BMW really lost face with JV's spectacular engine blowup. From what I read the guys at Munich are examining the fault for a hotfix in time for Sepang.
On a positive note, there is a new aero package on the way for the F1.06 which will transform the look of the car a bit. One of the more noticable changes is a new rear wing to improve aero efficiency. Not sure if it'll make it on time to Sepang.