The Xbox 360 disc for Jurassic Park is no longer an anomaly. Telltale issued two press releases today announcing that they will be publishing retail releases of Back to the Future: The Game for Playstation 3 and Wii in October. This is the first time the series will be available for Wii in any form; it is currently available through the PSN. I also believe that these and Jurassic Park will mark Telltale's first self-published retail console releases. The CSI and Sam & Max discs were published by Ubisoft and JoWood/Atari respectively.
In the announcement, Telltale also boasts the statistic that Back to the Future has generated over one million downloads on PC alone.