Sega has promised a few added extras for Xbox owners who decide to purchase Phantasy Star Online. First, the company has announced a new playable character, not found in the GameCube version, will be added to the game. Sega did not elaborate as to what this character would be, but its other announcement is probably more important anyway. That revelation is the introduction of an Xbox keyboard, for use with PSO and other Xbox Live titles (as well as, potentially, single player Xbox games).
The Xbox keyboard will be released simultaneously with that console's release of PSO, which surprisingly has no announced date as of yet. Despite this lack of a Japanese date, there is little chance the game will not make it to North America.