I was surprised to find that there are already used G8s on autotrader.com...quite few GTs and some nicely equipped V6 models as well. I dont know how soon the ST will get here in numbers big enough to make it widely available but I'm looking forward to checking one out up close. Hopefully they will have one at NYC this spring that you can actually sit in instead of on a pedestal. The one they had there lest year looked nice but you cant tell much about interior room from looking thru windows.
I still think "Apache" would have been a good name since it goes with the Pontiac Indian heritage and GM probably still hold the rights since it was used on trucks years ago.