If my memory serves me _right_, I saw a Dell POS (Point of Sale) system a couple of days ago that had an integrated Intel videocard which offered only VGA and DP outputs. If you wanted a (legacy) DVI output you had to buy an extra ATI card that had DVI output.

Also a couple of new laptops offer DP output and combined with the advantages that others have already mentioned, I think that it has a future and it will replace DVI, but not HDMI.