It looks as if the secondary joypad accessory being released for the 3DS final has a name.
Siliconera reports that Nintendo has trademarked the name ‘Circle Pad Pro’ in Japan, It has also trademarked ‘Slide Pad Expansion’ in Japanese, suggesting the former moniker is destined for the rest.
Pictures of the peripheral first appeared in August. MCV admits to having a little chuckle at its expense, and no one was as surprised as us when Nintendo officially confirmed the unit in September.
It will be compatible with a number of titles including Monster Hunter 3G and Resident Evil: Revelations.

http://www.mcvuk.com/news/read/3ds-c...-a-name/086997