Pokémon Dream Radar and the Pokédex 3D Pro have been confirmed for North America and are set to launch on the 3DS eShop later this fall. Sounds about right, given the not-so-distant upcoming release of Pokemon Black/White Version 2.
If you enjoy using the various system features of the 3DS, Pokémon Dream Radar might be of interest. In it, you capture Pokémon against an augmented-reality backdrop. The Pokédex 3D Pro, on the other hand, is an expanded version of the free non-pro Pokédex app that has 600+ Pocket Monsters and loads of info you'd otherwise need to look up on a wiki.
Did you ever get around to using the Pokédex 3D? I thought it served as a cool little tech demo for the 3DS, but probably wouldn't have gotten the app had it not been free. Nintendo has yet to list prices for either of these new apps, so we'll have to wait and see what they can get away with charging.