I don't even see the trackpad listed on the Best Buy website. Only thing that shows up is the Magic Mouse. It could be awhile, since I remember that it was almost a month before the new remotes showed up, after they were in Apple stores.
Also no luck at my local Apple store, but that store is crap anyway.
I checked three best buy stores near me in northern new jersey and they didn't have any and didn't really know when they would get them. I went over to one of the four apple stores within 1/2 hour of me (i'm pretty lucky as far local apple stores go) and they had a bunch out on the shelf.