The filing, along with letters from Sony itself have confirmed that the white PS3 is ready for a North American launch. The model number, CECHH01 is different from the Japanese white PS3 but the model revision is more of a subtraction than any addition. The new model will come standard with a SIXAXIS wireless controller and not the DualShock 3.
There was no release date or launch price indicated by the filing or the Sony memos but the popular rumor is that an official announcement is coming next week and that sales of the new model can begin in early February. Other rumors have suggested that the black 40GB model will receive a price cut with the addition of the new white model to Sony's lineup but be reminded none of this information is verified.