Thanx alot for your reply1. Including an omitted name on the DS form (which is the right thing to do) does not mean the name will now be included on the correspondence from the U.S. government, the visa that will be issued or the GC itself. However including the name enables them to do an extensive background check. So the CO isn't likely to raise an issue about it, especially since you're not even the main selectee to start with.
2. You can always change your address at the POE.