Summary from GN:
* record 3D video for up to 10 minutes
* do interval recording and many other options
* allows for stop-motion animation
* Find Mii getting new map update
* firmware adds ability to transfer 3DS software to other 3DS units
* basic eShop improvements
* Mario Kart 7 installs a Mario Kart Channel
* get ghosts from other 3DS players via StreetPass
* select a person's data from the Mario Kart Channel and race them online
* 8 player online, 60 FPS
* community features added, allowing you to create your own community
* daily downloads for ghost data via SpotPass as well
* new samurai game announced
* Thruspace getting an eShop version
* Itsuno ma ni Koukan Nikki is a tool for exchanging photos and other things with other players, due out this Dec. for free
* Lost Heroes, an RPG featuring Gundam, Ultraman, Kamen Rider and more
* 3000 people will win one of those special Mario-themed 3DS'
* everyone that takes part in the campaign (???) gets 3D Classics: Kid Icarus for free
* 3D Classics: Kid Icarus will also eventually be offered as a paid download
When the student is ready, the teacher will appear.
When the student is truly ready, the teacher will disappear.