Amazon has listed a Game of the Year edition for LittleBigPlanet, but without a release date.
The game is listed for $49.99 and contains “Bonus Content Valued at over $30” which we can only conclude means the majority of what is already available via PSN.
No release date was posted with the listing, but Amazon is taking preorders, apparently.
More over on IGN.
[Update] Amazon must have moved the page or deleted it because it has suddenly vanished.