I just got wind of the new crossover game that features the worlds of Street Fighter and Tekken together. According to IGN.com, it is being developed by Capcom and Namco and with be on both the Playstation 3 and Xbox 360. There is no release date, or information on a system bundle pack, but I wouldn't expect that info to be available if the game was just announced at Comic Con on Saturday.
http://xbox360.ign.com/articles/110/1108350p1.html?_cmpid=ign18
There is the link for the teaser trailer, so take a look! It's pretty appetizing, but that's why they call it a teaser trailer, right?
Now, I always had a little love for both series; more for Street Fighter than Tekken, with Ryu and King as my favorite characters from each. The Marvel vs Capcom series was a goody-bag of fun times, so I'm really excited for that release, but I'm curious to see if this will just be another mashup or if there will actually be a story to it. Not that there's anything wrong with a slugfest between your favored characters from different universes (just look at Mortal Kombat vs. DC Universe). I only commented on the story aspect because it's becoming increasingly important nowadays for games to have in-depth narrative.
That said, I'm pretty sure Street Fighter X Tekken will be more than its predecessors. Keep an eye out for it!
