Virtua Fighter 5 was a brilliant title when it was released on PlayStation 3 early last year. An upgraded version of VF5 was ported to the 360 approximately six months later, which included an online mode that was conspicuously absent from the PS3 version.
Recently, Sega released a patch on the 360 which improved various aspects of the title across both offline and online modes. Don’t expect to see this anytime soon on your PS3. Accoring to Jay Boor, "at this time SEGA has no plans to release a patch for the PS3 version of Virtua Fighter 5."
It’s frustrating when a PS3-timed exclusive gets shafted simply for coming out first, but it happens. At least we can expect online play come the inevitable release of Virtua Fighter 6.