CVG reported earlier last night that Virtua Fighter 4 is in development for the Xbox, and not only the PS2 platform. Our friends from OXM UK have now confirmed that an Xbox version of VF 4 is in the works. They spoke to sources close to Sega this morning, who confirmed that the title is in development - although there's no official word on extras just yet.
Close sources to Yu Suzuki, the legendary creator of the Virtua Fighter series and driving force behind Shen Mue, have confirmed that the developer has been speaking of a version 4.1, for release late this year in both arcades and the Xbox console.
News source: Team Xbox