I don’t think anyone doubted that Square-Enix would ignore the big pile of cash Kingdom Hearts: Birth by Sleep would most likely produce in regions outside of Japan, but if you for some reason feared the PSP exclusive wouldn’t be released outside of Japan you can rest easy.
The confirmation comes from Jesse McCartney, the voice actor of Roxas in past Kingdom Hearts games and most likely Ventus in Kingdom Hearts: Birth by Sleep. He writes on his Twitter “Recording yet another Kingdom Hearts Game. All you Gamers eat your heart out!”
While there is no date for the North American or European version yet, you can probably expect it some time in 2010. For now though the only release date we know is January 9th for Japan.