The guys over at 8wayrun have started a petition to encourage the team behind Soul Calibur V to implement GGPO netcode. If you are looking for more details on this endeavor, check the thread. If you’d like to sign, head over to the facebook page.
Namco is already known to be using GGPO in the arcade only 3D Dragon Ball fighting game. Convincing them to use it in SCV would be a win all around.