True, but as a traveller, the iPad is superior. For most of laptop tasks. True, I can't do business tasks like update presentations, spreadsheet work or run enterprise apps (my profession); but I don't need to on the road.
So for the footpint of a magazine, that I don't have to take out of my bag in airport security; I get one heck of alot of functionality.
Look into Dataviz. They make apps for the iPad that enable you to work with some Office programs.