SEGA Australia have issued the above release date schedule(click to enlarge) for their upcoming games and on the list we can see both Wii and DS versions of Sonic Colours are planned for a November release, which fits the original Late 2010 plan perfectly. No exact date is given, but at least Australian fans know what month to save their money for. Sonic titles don’t usually have a big release gap between regions, so hopefully the rest of the world will see a November launch too. We’ll update when we know more.
Source: GoNintendo
Thanks to Hero of Legend at the SSMB for the heads up!