Yes, that's NOT a typo. This trailer just dropped at Comic-Con 2010
in San Diego. From the press release:
"As in Street Fighter IV, 2D gameplay will feature fully realized 3D
character models battling for domination in both new and familiar
highly detailed environments that are brought to life with engaging
animations. In addition to modes such as Versus and Training that
will feature new enhancements to make the fighting experience
more in-depth and enjoyable, Street Fighter X Tekken will include
Tag Team combat where players select two fighters to deliver knockout
assist attacks and special combos."
Some long debates may finally be put to rest...or not...either way
this is full of WIN.