It's not "new". But it sure is awesome! I'm gonna order one. I never design with an external monitor anymore because I travel around all the time. But it would be nice to have a little extra space to show a chat window on or a design preview of something.
I like the idea of a second screen for my laptop, but this looks like a pain to set up. DuoscreenTech.com has a different approach to conveniently bring a second HD screen on the go.
ShipHawk
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Duo Screen