Co-Creator of LittleBigPlanet, Mark Healey. We worked hard for this, and they were nice enough to give us some in-depth answers. Give it a read, it's got some great information.
We are a little unclear as to the purpose of the moon. Does it represent local save space or online hosting space? If it is local, then is there a limit to the amount a player can upload?
It represents your local save space (hard drive). There are about 100 slots for to experiment in. There is a limit to what you can upload – but it will be possible to earn more….