Apple still king of the mobile computing hill thanks to iPad
 

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 story over on the tablets leader-board, too. Cupertino pushed out 13.6 million iPads to maintain first place, while Samsung took the silver medal after packing off 1.6 million of its numerous Galaxy slates. Surprisingly, Amazon only needed to ship 900,000 Kindle Fires to take third, although given that the bookseller never discloses its numbers, we have to take that last number with a dash of disbelief.

http://www.engadget.com/2012/05/22/npd-q1-2012/