Nintendo has been stating for quite some time that Miiverse, the Wii U's Nintendo-centric social networking service, would be making its way to the 3DS. Today's update finally delivers on that promise. Wii U owners will find it easy linking their Nintendo Network ID to their 3DS, while those who don't own Nintendo's latest console will have to create a NNID of their own. This update is a huge step towards account unification on Nintendo platforms and also includes a few other minor tweaks.
Aside from allowing players to access the Miiverse, today's update also unifies the Wii U and 3DS eShop, combining player funds. Nintendo has also removed the limit on 3DS system transfers. Quick activation of the system's camera has been changed as well, and now requires users to hold both the L and R buttons simultaneously. This will help prevent users from accidentally entering camera mode.
One major difference between the handheld and console versions of Miiverse is the lack of 'friend features' on the 3DS. This is undoubtedly in response to the recent issues Nintendo had with the handheld's SwapNote app, which was being used by child predators. The standard 3DS friends list remains intact. As of now, we aren't sure whether Nintendo will consider changing their policies on Miiverse friends in the future.