same here. I'm hoping this post may jinx it and cause it to update.
I applied for both Nexus and GE, could that be a delaying factor?
Might be...
App'd 11-Jul-2011 for GE/Nexus/Sentri, basically all the free ones.
Rec'd NEXUS approval on 15-AUG-2011, still nothing on GE/Sentri.
I'm chalking it to travel and work in squally line named countries.