Gamespot is reporting that Atari will be releasing a second Test Drive Unlimited demo via the Xbox Live Marketplace some time today. While I wouldn't bet the house on it appearing today since Xbox Live director of programming Larry "Major Nelson" Hyrb has often taken issue with developers announcing demos that hadn't passed Microsoft's quality testing, those interested in the game (read: not me) should keep an eye out for it during the next few days.
Having played the demo of the game that popped up during E3, I have almost no interest in this title at all. Xbox Live is a double-edged sword - while a good demo can boost your sales and create word-of-mouth sales for your title, a bad one can do the opposite just as efficiently.
Those looking for more information can check out the Gamespot article at this link.