Online Extra: Mark Cuban: Watch Out for "Ultrabroadband"

Broadcast.com's founder says once high-speed Net access gets to 1 gigabit a second, then we'll see our lives change
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Mark Cuban, founder of Broadcast.com, is now the outspoken owner of the Dallas Mavericks National Basketball Assn. team. But that doesn't mean he has ceased being outspoken on tech trends, from what broadband needs to become a world-changer to why the music business "is the only industry in America where sales can fall by 10% per year, and everyone yells it's not their fault." BusinessWeek's Peter Elstrom recently talked to Cuban to get his thoughts on the state of tech. Following are edited excerpts of their conversation:

Q: Is the technology industry mature?