I did my preorder Sept 1st for the 2600+, but I do not remember if the expected ship date was Nov or Dec
As for the other system, It wasn't a good idea to preorder the GSP direct from myarcade. I canceled my order last week since it was past the ship date and hadn't shipped yet.
I really hope the 2600+ direct from atari.com doesn't end up the same way as the GSP