Filed under: Portable AudioStep aside Universal Music, Sony BMG is now offering its catalog of music on Nokia's Comes With Music service. You know, the freebie, all you can eat music download service expected to launch mid-2008 (oops) "second half" of 2008. Remember, you'll have to buy a Comes with Music device first and the free download period from the Nokia Music Store (to your PC or phone) only lasts for 12 months. Still, consumers keep the downloaded (and DRM'd) tracks at the end of the period and "can transf