From ABC News With legal gambling now moving beyond the casinos and onto the Internet, the industry is bracing for the most far-reaching changes in its history. A Las Vegas firm, Ultimate Gaming, on Tuesday became the first in the U.S. to offer online poker, restricting it, for now, to players in Nevada. New Jersey and Delaware also have legalized gambling over the Internet and expect to begin offering such bets by the end of this year. And many inside and outside the industry say the recent position taken by the federal government that states are free to offer Internet…