Nintendo 3DS - Swapnote's Nikki Joins Streetpass Mii Plaza via Spotpass
NOTE - There is an update, check the bottom of the video description!
This was recorded with my Blackberry Torch 9800. The footage was recorded with the 3DS in 2D mode. Sorry for the low quality. Anyways earlier today Nintendo started rolling out date-locked messages from Nikki in Swapnote (Nintendo Letter Box for those in other regions).
When I later checked Streetpass Mii Plaza to startup a new round of Find Mii II, Nikki herself was waiting in my plaza.
Nov. 3, 2013 Update: Nikki is no longer available to be invited from Swapnote/Nintendo Letter Box due to Nintendo suspending the service. You can only now get her by invitation from other games (like Mario Kart 7) or wait for Nintendo to reinstate Swapnote/Nintendo Letter Box...if that happens.
Nov. 24, 2016 Update: Nintendo released a spiritual sequel to Swapnote called Swapdoodle in the 3DS eShop. Just like in Swapnote, Nikki heads up Swapdoodle!
Feb. 14, 2017: Thanks for 10,000 views on this video!