Personally, aside from a feeling of dislike for anything marked "S&W," I don't have a problem buying a new Smith from a dealer who already had the gun in stock, or who got it because it was in the pipeline when the announcement was made--and not because he's going along with the agreement.
As an example, I ordered a 625 Mountain Gun from the local gun shop before the agreement was announced. I placed the order in good faith, and the dealer and I considered it a done deal at the time. The dealer paid his distributor up front to get the 625 for me. The agreement was announced just before I went to pick up the gun. But I proceeded with the purchase so as to keep my word to the dealer, who I've been doing business with for many years.
However, I will not now be ordering two other S&Ws (4006 and 4506) that I'd hoped to buy. So, since my dealer will not go along with the agreement, my 625 sounds like the last new S&W he or I will ever get.
Just my $0.02.