Media Molecule co-founder David Smith has revealed LittleBigPlanet will run at 30fps in 720p.
Speaking in a Eurogamer live text interview, he said, "The game uses a lot filmic techniques like depth of field and motion blur, so this fits the game pretty well."
When asked about the game's HD install Smith replied, "We haven't finalised the details on this."
However, he did go on to add, "The game is designed to be fairly lightweight, to make the sharing of new content easier. Our levels squidge down into really tiny files, which means that when the community makes new ones, they'll download quickly.
"The HD install is perhaps around a gig. Perhaps more or less. It's not finalised yet."
LittleBigPlanet is out this October. Read the full live text interview for all the latest news.