While testing on another N900, I found that Qt Mobility 1.2 doesn't mix well with the CSSU update, this only means one thing, the update will be delayed a day, a new CSSU update will be pushed, this will revert Qt back to 4.7.0 with some custom fixes applied on top, then new Qt Mobility libraries if they don't work well with the old 4.7.0 (which they should).

Sorry about this, it should've been fixed earlier :/