At yesterday's MacWorld keynote, Steve Jobs unveiled no new major music initiatives at iTunes or with the iPod line. Jobs said that iTunes had passed the 4 billionth track download, but that represents a slight slow down of growth. No IPod numbers were shared, but again analysts suspect that sales growth is slowing. Those same analysts were less than impressed by the announcements that Jobs did make yesterday including movie rentals at iTunes and an amazingly thin new MacBook Air. The stock market reacted sending Apple's stock down $5.45 by the end of trading on Tuesday. Music industry observors had hoped for an Apple subscription music service or expansion of its wirelesss download platform, but Apple hinted at no such initiatives. (WebProNews)