Contacted GM related to how to install the applications due to the APPS LINK IS MISSING FROM THE HOME MENU on cd600 and navi 950 and the answer was:
I can confirm at present your vehicle is GM Application ready, we do not have a release date available at present.
That not even close to what they advertising about the intelilink system ....a total misleading ....
Dorel
PS. Probably we should start a petition related to that