Nintendo released two new Pokemon themes for the 3DS users in Japan.
You can buy a Team Galactic and a Team Rocket theme for 200 – 200 Yen (with tax).
Each of them comes with different design with panoramic and moving wallpapers, sound effects and different BGMs.

The Team Galactic version comes with the Pokémon Diamond and Pearl theme song while the Team Rocket version comes with the Pokémon Red and Blue Team Rocket theme song. In the gallery you can find the sample pictures of the themes.