There's been so much chatter about Apple iCloud that you'd think
the streaming music service had already been announced and the
deals inked. But it's still just a rumor until an Apple
executive takes the stage and unleashes the Amazon Cloud Player
and Google Music competitor in a spate of superlatives. That
hasn't stopped Businessweek from stepping up with a good summary
of all that is "known" thus far, while giving us some insight
into the particulars of how the service will work and the
motivations to make it happen. One revelation, sourced from
three people in the know, claims that Apple will scan customers'
iTunes libraries (hello, LaLa) and quickly mirror the contents
on Apple's own servers -- no massive DSL-choking upload
required. And Apple will do you the solid of "replacing" any low
bitrate tracks with the "high-quality" versions it stores in its
fully licensed music locker for streaming to your connected
devices.  Of course, this value-add won't come free and will
certainly require a subscription fe