It's a difficult question for some analysts to answer. Is the iPad a new class of device or is it a version of an ultra-portable notebook? How you group the iPad makes a huge difference to those professionals trying to assess the impact of the iPad on the notebook computer market.
If you group the iPad into the computer category, Apple could bump HP out of the top spot and become the world's largest notebook vendor. Apple is projected to ship 40 million tablets and 15 million MacBook notebooks in 2011. Combined, these two products produce a total shipment volume of 75 million units. HP is expected to ship 50 million notebooks in 2011, a number that is far less than Apple.