NPD DisplaySearch is declaring Apple to be the undisputed champion of the mobile PC business for the first quarter of the year. The fruity phone flinger shipped (shipped, not sold) 17.2 million mobile PCs in the time, a figure that contentiously includes the iPad. Second place was taken by HP, which packed off 8.9 million units -- enough to put it at the top of the Laptop-only chart. It's a familiar