I've got to hand it to Heavy Rain. Or Sony's marketing team. Although I thought the game was pretty good, I also thought it would be a tough sell to Average Joe. Guess not, since it's gone #1 in the UK.
Yes, Quanitc Dream's moody crime thriller ousted Ubisoft's Just Dance, if only for a week, the lure of a strong PS3 exclusive outperforming the lure of yet another cheap wagglethon. Whether it'll still be there next week is anyone's guess (I'd say "no"), but it's still a great achievement considering the nature of the game.