IIRC, there are PS1 titles on the JPN PSN from Namco, including Tekken 2; and there is that new game from Katamari's creator. Lumping those countless XBLA games and other developer titles (that Bandai picked up) is rather pointless seeing how many versions of those games exist and they're essentially shovelware. Tales and AC6's appearence was explained as development started in 2005, and ports are possible.
MS's pockets may be deep, but they're smart at it. Look at their recent showering of SE for example. Namco franchises aren't quite as powerful or relevant nowadays.
Anyway, this GamEX interview is actually from Sept 07, and the mag only had one issue. Have a look:
http://thirdworldgamer.blogspot.com/2008/04/gamex-issue-3-has-exclusive-tekken-6.html
http://www.otakuzine-mag.com/messageboard/showthread.php?tid=2466
In other words, Dec was the target release of the arcade T6. So I'd wait for something official.
