A post on the official European PlayStation forums states once and for all that LittleBigPlanet will have one region: "LittleBigRegion," aka Earth. Although future Sackboys around the world hoped there'd be no region lock, the possibility did come up after the game's senior producer allegedly made statements about region locking during Leipzig.
The confusion about region locking revolved around moderation requirements required in different sections of our own little big planet. Apparently Sony has "worked around" this issue and now all shared levels will be available worldwide when the game releases in October.
[Via PS3 Fanboy]