Business 2.0 :: Online Article :: Telecom & Wireless Report :: Broadband's Ultimate Killer Application Downloadable music, however, will be just one catalyst of the broadband explosion. Take online radio, for instance. Online streaming radio stations have been around for years, but now the sound has improved to almost CD quality. Customers don't even need computers; they can buy devices that stream Internet radio directly over high-speed connections. But they have to have broadband.