I just traded with one of my Friends and he gave me a Rotom. I know PokeTransfer isn't on yet, so where could he have gotten it from? I checked the Pokedex and it said it's location is unknown. Maybe my Friend's a hacker... O.O
Your friend is not a hacker. Rotom is found in trash cans at the Lost Hotel on Tuesdays, similar to how Banette is found in trash cans at the Pokemon Village on Thursdays.