ALright I have beaten the second gym but i'm stumped on were to go =/
After that just head east to Carolina City.
Anything that isn't listed in the credits is done by myself. Thanks for pointing that out and the end city is Carolina City, but if you just beat the third gym you can go back to the Cerise Forest for something extra.
Just to let everybody know beta two should be out sometime in August and I should have some screen shots of it soon.