You can now add custom folders to the 3DS user interface. Organization factor just went through the roof.

After having all 20 download games from the Ambassador program plus all the default icons plus other downloads, the interface screen was getting crowded. Not anymore.

Now I'm trying to think of any other game system with a better UI. Prior to the update, I could think of a couple. After the update, not one.

eShop has a nice UI update too.