Apple was supposedly waiting for a deal with Sony before it could launch its rumoredinternet radio service. That roadblock may have just been cleared: AllThingsD claims that Apple has reached an agreement at the last minute, which gives it the all clear to announce the streaming feature at WWDC. Other details aren't immediately available, but previous rumors have suggested that Apple won't deploy the ad-backed service right away; we may end up waiting a few months before we can tune in. If the rumors are true, though, Monday's keynote will be more interesting than we first thought.