The non-commital shrug heard around the world. Utopolis is not a location that's appeared in any Marvel books thus far at least, not in any memorable capacity, or not under that name. Utopia was the name Magneto gave to Asteroid M, his space station base on a rock that orbited the Earth, after it had crashed to the ground and took root in San Francisco Bay. The X-Men adopted it as a covert base of operations for a while, offering all mutants and their families a home and a chance to live in peace, without fear of persecution. Perhaps Utopolis is a larger version of that from an alternate world. Or it could be something completely new...