D-Link, the company best known for its workings in the networking space, is suddenly branching out into new territories. Taking a pretty noticeable cue from Nanovision, D-Link is debuting a secondary display today in Las Vegas. The 7-inch SideStage, which rocks a 800 x 480 resolution and can be used in either landscape or portrait mode, weighs just 1.34-pounds and gets all the juice it needs from a powered USB 2.0 socket. Regrettably, the outfit failed to disclose a price or release date, simply saying it would be on display at CES. Why the tease, D-Link?