The online personalised music streaming service Pandora has signed a deal with US carrier Sprint to be pre-installed or downloaded to handsets. Pandora and other web broadcasters have been heavily hit by recent increases in the licensing fees for web broadcasters in the US. Pandora has also had to stop streaming outside the US. The new Sprint venture means a badly needed extra revenue stream on top of advertising. Pandora says it has 6.9 million registered listeners. Pandora founder Tim Westergren says if the new royalty scheme stays then the business no longer makes sense.