Two Gundam games for the Nintendo 3DS in one year? Yep, but SD Gundam G Generation is quite different from Gundam 3D: The Battle. This title is a strategy RPG, more like the Super Robot Taisen series except its a Gundam exclusive club. And there are a ton of Gundam series and ace pilots represented in the game. Mobile Suit Gundam AGE will debut in SD Gundam G Generation too.
Namco Bandai has the game slated for release on December 22 and as of now SD Gundam G Generation has only been announced for Japan.