It's definitly not the last budokai game. There is a budokai game called Dragon Ball z, Shin Budokai, coming out for the psp. Chou Dragonball is coming out for PS2, but only IN JAPAN. Not any other country.. so unless you can get in imported version, you really can't play the game. Yes, I know, I have done my research like I always do.
PS Gamers Network - My new website, please contribute. Includes Wii and 360 Forums as well. http://z15.invisionfree.com/PS_Gamers_Network