Unique cross-platform online multiplayer will allow play between "almost any combination of the DS and Wii versions" of the new Final Fantasy Crystal Chronicles title.
http://www.nintendoworldreport.com/newsArt.cfm?artid=17336
In an email newsletter to its European fans, Square-Enix has stated that Final Fantasy Crystal Chronicles: Echoes of Time is set to launch across the region for both Wii and Nintendo DS in the Spring of 2009.
Echoes of Time will reprise both the local co-operative multiplayer modes and handheld-to-console connectivity of the original Crystal Chronicles title for GameCube, but will make use of unique cross-platform play—both locally and online—for Wii and DS. As Square-Enix puts it, this will mean that "you and three of your friends can play together, with almost any combination of the DS and Wii versions of the game."
