No console-specific characters for SFIV
According to this MTV story, Street Fighter IV will have no console-specific characters, unlike the upcoming Soul Calibur IV which packs Yoda for the 360 version and Vader on PS3.
Producer Yoshinori Ono told the site that Capcom didn't "want to go in that direction."
Just for clarity, the home versions will feature new fighters over the arcade game, but you'll get everything no matter which version you buy.