I don't know. But i know how to get 999. You buy a DS cheat cartridge. You then put in Pokemon pearl THEN the cheat cartridge THEN you click on Pokemon pearl/diamond and then click on Pokemon 999 Master balls.
No, there will not be a Pokemon Platinum that is going to be released for the Wii. Pokemon Platinum is solely for the Nintendo DS, DS Lite, and DSi. But, on the wii shop channel u can buy Pokemon ranch for pearl and diamond.
get 2 ds' and in pearl when you turn the ds on go to the bottom right that says ds wireless communications and then in black go to route 15 and there is a big building where you can transfer your Pokemon to pearl