PSP will be the sole home of the next Dragonball game. While every game in the series so far has been based on the anime and manga, Dragonball: Evolution will be based on the upcoming live action movie from 20th Century Fox. The game will be available in April, just in time for the movie's theatrical release.
The character models are based on the live action actors, as opposed to the anime characters so familiar to DBZ fans. We're not sure how well this game will fare, considering it looks just as bad, if not worse, than the movie.