First of all, the iPhone Software Development Kit has been downloaded over 100,000 times, according to Apple, and this is only the statistic for the first 4 days since its launch!
Next, reports about iTunes are also very interesting. Disney's CEO, Robert Iger, announced at the Digital Hollywood Media Summit that iTunes was behind 4 million Disney movies sales, as well as 40-50 million of their videos. Of the above, 1.3 million movies were sold by February 2007, in the first 3 months of operation of the iTunes movie store.
Remaining in the same area, iTunes' profits for 2007 are somewhere around the $570 million mark, according to Billboard's calculations, while Disney's profits for the sales mentioned in the previous paragraph are estimated to be almost $123 million.
These being said, I am sure Apple's 2008 will be another strong year for the Cupertino-based company, from all points of view, no matter who tries to hit them with various copyright infringement suits or other things like that...