This announcement, if true, would be a HUUUUUUGE blow to Activision's Guitar Hero, since The Beatles are the best selling artist of all time. I think those of you expecting this to be a downloadable song pack for $20 or $30 are completely wrong. This is going to be MUCH bigger than that. I expect to see a full-priced game comprised of all the songs off of The Beatles' 1 greatest hits compilation, and possibly album packs as downloadable content.
So, what's your take? Would you buy Rock Band: The Beatles as a full-priced game? I know a lot of people, maybe including myself, sure as hell would. Hopefully this opens the door to The Gray Album being in Rock Band...Nahhh.
Update: Stephen Totilo of MTV's excellent Multiplayer Blog has confirmed that there is a Beatles game in development at Harmonix. It is not a Rock Band expansion, but rather a totally new game built from the ground up. Nothing else is known about the game, other than it will be out next holiday season.