To think that I didn't learn this from my usual source...
[VIDEO]http://www.youtube.com/watch?v=aSd8jShLfhg]YouTube - Street Fighter Vs Tekken Debut Trailer[/VIDEO]
[VIDEO]http://www.youtube.com/watch?v=N6U7jZ-qMfI]YouTube - Street Fighter X Tekken 'Ryu, Chun Li vs Kazuya, Nina' Gameplay[/VIDEO]
Namco and Capcom have teamed up again to release 2 crossover games: Street Fighter Vs Tekken (using the SFIV engine) and Tekken Vs Street Fighter (using the Tekken 6 engine). And so far it looks killer.
Also sfIII:3s is coming to ps3 / xbox360. Is there any footage from the tekken engine game yet?