Yes, it's happening: During Capcom's Super Street Fighter 4 panel  at Comic-Con today, a trailer was shown off for Street Fighter X Tekken for PS3 and Xbox 360, the official name for the game pitting characters from two of the most popular fighting game series ever against each other for the first time.

The announcement came in what almost sounds like the promotion for an epic wrestling match -- the proceedings of the panel were suddenly interrupted (very deliberately, of course) by producers of the Tekken series, and this was followed by a trailer that made the game official (we should have some footage up soon). Evidently SSF4 producer Yoshinori Ono first approached Tekken 6 producer Katsuhiro Harada about the idea, since Ono heard Harada was a Street Fighter fan.

So the original rumor that "Capcom vs. Namco" would be announced wasn't quite accurate (obviously "Street Fighter Cross Tekken" suggests only characters from the Street Fighter and Tekken series will appear in it), but the rumor was correct that there will be two versions: One made by Capcom that'll play more in the style of Street Fighter, and one by Namco (called Tekken X Street Fighter) that'll play more like a Tekken game.

Really wondering can this be success...Street Fighter and Tekken really 2 different game play of fighting game. Tekken characters are prohibited to jump due to juggles. And Street Fighters are often encouraged to jump to start out the combos...And the blocking methods of Tekken I swear will drive Street Fighter players nuts, ahah~