Enterbrain and Famitsu have posted first week sales for Pokemon Black/White 2. As reported by andriasang, the game sold 1,618,621 units in just two days.
The report also points out that this represents the third best start for a launch on the DS platform (the fastest being the original Black & White - 2,637,285), and that life-to-date sales for handhelds that support Black & White 2 are as follows: Nintendo has sold 32,855,241 DS handhelds, and 3DS has sold 6,288,344 units.