Hewlett-Packard will launch a 4-pound "ultralight" business notebook line based on Intel's Centrino 2 silicon this month. HP to launch new 'ultralight' business notebooks
Pfft now people will be even more lazy they don't even have to carry around 5pounds when they take their laptop somewhere. I don't see the point of all these really small really light laptops. Get a 14 or 15 inch laptop and buy a backpack or bag for it, its not that big, not that heavy and its usable.
Not to mention many in the professional fields have better things to do than lug a 3 lb weight around.