I didn't see the stream myself, but Nintendo Direct just revealed a Pokemon AR minigame...
Apparently Black 2 and White 2 will have another 3Ds app it can "interact" with.12:07: First, Pokemon AR Searcher, out on June 23. This is an AR shooter. Pokemon that you catch via the app can be carried into Black & White 2.
And an update is coming for the 3D Pokedex.