The article seems pretty standard fair, you (the OP) seem to be overly sensitive to articles highlighting a competitor's product. There's been plenty of ipod killer articles floating around the net and even in "respected" magazines. Its what publishers use to catch a readers eye - it worked in your case. Advertising is the same thing they use puffery to over promise on a product.
Macnn is not cnn, or 60 minutes and I don't think they violated any journalistic ethics. Additionally we also know that Microsoft is trying to knock the iPod off of its perch so it is accurate in that sense even of the article never mentioned the ipod.
Apple has to keep innovating and keep trying to make consumers happy, otherwise companies like Microsoft will over take them. That's capitalism for ya.