Currently there is Colors 3D on the 3DS but recently announced to arrive in the west is "Comic Studio".
The art app will allow for full 80 page comics and manga and will host a variety of tools to include speech bubbles, pens, penciles and color options and more. You can easily save your creation to the 3DS SD card and then to the computer. (no word yet if you can share through the app it's self)
http://www.animenewsnetwork.com/news/2014-01-10/comic-studio-nintendo-3ds-app-gets-western-release
Tue Jan 14, 2014 6:27 pm by MasterOnion