Nintendo will be releasing a messenger service named Letter Box in Europe and will drop on December 22, 2011. For North American users please check for an app by the name of Swapnote. It will bring message sending and picture sharing between 3DS friends. It will make use of the 3DS’s Streetpass and Spotpass features and will let users send messages and 2D/3D photos & drawings and also sound effects. Now let’s see how fast it takes for people to draw the things they did when they used Pictochat on the DS!