After you restore the power in Kanto, go to the copycats house in saffron. She'll be missing her pokedoll. Then go to the fanclub and her doll will be one the table, talk to the guy beside it and he'll give it to you. Now all you have to do is walk out the door!!!! :D this is how you find latias/latios and go to silph co. and he'll give you a hoenn starter.
Later: After you beat the elite for and then Red (top of mt.silver) talk to steven at silph co. again. He will offer to trade a beldum for a forretress.