GamersDigest can confirm that the LittleBigPlanet demo is now available to download on the Japanese PSN store.
The demo comes in at 917MB, and features a small selection of levels from the game and community database, along with a few level creation tools to test out.
It will be released on other regional stores on the PlayStation Network later today.
Update The demo is now also up on most regional PSN stores.
140°
180°
450°
170°
Ad 
220°
20°
20°
30°
20°
Ad 
10°
