(Thanks to Phil for the tip!)
When we recently saw the brand new Dance Dance revolution X2 machine at Betson’s IAAPA booth in Orlando, I caught a problem with the game on camera where it locked up for a brief moment in the middle of the song – there were also reports of other timing issues and even a software crash here and there. Suffice it to say, the build they had running was not the best way to show the game off. Fortunately for DDR fans, Konami is working hard to resolve these issues before the game is released in a couple of weeks and they even invited a couple of expert DDR players from BemaniStyle.com down to the Konami offices in California to playtest the latest software. As you can read there, the issues have been all but resolved, with a few minor timing drifts being discovered and corrected. As such by the time the game is released, players should have a worry-free experience to look forward to, which is certainly made possible by the joint efforts of Konami and the fans working together to prevent a sub-par release.
UPDATE: As they promised, the BemaniStyle guys got a chance to play the final build and are happy to report that there are no drifting/lag/lock-up issues to report. You can read about it here