Great job organizing this.
I'm wondering if they'll count Past Masters Vol 1 and 2 (which collect all the non-album singles and B-sides) as albums. I'm also wondering if they'll use the Let It Be....Naked song versions and track orders.
I expect that the next batch of songs announced will include songs off of Help, Rubber Soul, and Sgt Pepper, since we don't have any from those.
I also agree that "Rain" would be an excellent song for this game.