hi there,recently there has been major updates to hp's line of entertainment laptops these include the addition of the dm series namely dm2t series,dm3t series,etc.These new series are aimed at the thin and light market.These models feature an overhaul of design of simplicity and strength due to the aluminium casing they are made from.Unlike.the previous models they are more compact and sleek so u can toss them in your backpack when on the go.