Dell, HP and Lenovo Announce Joint Support for DisplayPort
 

"DVI-I, DVI-D, UDI, HDMI -- a confusing group of abbreviation for many. Interestingly, all of them do similar things and the two later ones attempt to address the same issues including backwards compatibility while being different themselves. As far as standards go, computer and digital displays have pretty much been using one big standard, DVI. However, industry supporters say that connectivity is too confusing, and in fact, will now launch a newer standard, called ViewPort."

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all the DVI variants are confusing.. Although it's good that they want to fix it, they should have done it right the first time.