That is indeed a Kratos sackboy! Sony Computer Entertainment is giving away some free goodies, including the exclusive Kratos from God of War sackboy skin above, when you pre-order LittleBigPlanet coming this October. Depending on what retailer you pre-order the title on, you can get a "LittleBigStickerBook", "LittleBigPouch" and more little...yet big merchandise from Sony. Check out the full list at the source link!
LittleBigPlanet, developed by Media Molecule, is exclusive to the Playstation 3. Check the exclusive hands on demo after the cut.
Playstation.Blog: LittleBigPlanet: Goodies