Wikipedia
DGamer
DGamer (Disney Gamer) is an online game and social network service developed by Disney for use with Nintendo DS games. DGamer is accessible via the Nintendo Wi-Fi Connection or computer via the DGamer Channel on Disney.com. The service is implemented by Fall Line Studios and Disney Interactive Studios.
It launched in North America on May 15, 2008, coinciding with the release of the DS version of The Chronicles of Narnia: Prince Caspian. All subsequent Disney Interactive Studios DS games are expected to include DGamer features.
DGamer's Wi-Fi connections were retired on March 15, 2013. It can still be used via local wireless connections, but is no longer able to connect to the Nintendo Wi-Fi Connection service.