Nintendo of Japan, via new CoroCoro scans, have revealed that the Nintendo DSi and Nintendo 3DS will have exclusive features in the upcoming Pokémon Black and White versions, revolving around both system's built-in cameras.
According to the scans, if Pokémon Black or Pokémon White are played on the Nintendo DSi or Nintendo 3DS, you will have access to video chat using the built-in cameras, both locally and over Nintendo WiFi connection. This featured, called "Live Caster", can be done with up to four friends who you've exchanged Friend Codes with locally and with up to two players over WiFi.
Both versions will also feature a "tag" mode, similar to how Dragon Quest IX works, although what this mode will do is still unknown. More information about triple battles was also released, revealing that attack strengths will differ depending on the placement of the Pokémon in your party. Finally, each versions will have it's own unique area, White Forest for the White version and Black City for the Black version.
Pokémon Black and White are set to be released this September in Japan with a early 2011 release in North America and Europe.