Hello, according to this site, Tatsunoko VS Capcom will be running in a Wii Based Hardware. It seems this site is very reliable for Arcade info.
http://ffl.sakura.ne.jp/rv/box1/tatsuvscap.htm

Also, some guy mentioned the game is running at 480p (the Taito Type X2 can display games at 720p, so i don't think they are using it).

Source: http://www.neogaf.com/forum/showthread.php?t=331846

PD. Wonderful update, keep up the good work!