We got the letter about the shared minutes program. I called them and they offered a pretty good deal on a package of our two cell phones and the new XLR. The problem that i ran into was that my 04 XLR is analog, not digital. What they offered was that if I subscribed to 3 yrs of Onstar ($1200) they would sell it to me $1100 and include an upgrade to the equipment in my car. I don't think that I want to commit to three years of Onstar service because I probably won't keep the car that long. Also, if you switch to that plan, you lose the minutes that you purchased for the phone (if you did so), and they are not transferrable to another car.