Thanks to a youtube video of the Zalman Booth we spotted what seems to be a mystery cooler/stand.  Both with the same body but one seems to have a fan in the middle but we are very uncertain of what these are and we are sifting through our sources to get more details on these.

From about 19 seconds in on the top row (right to left) sits the Zalman NC1500 Black, NC1500 white, and the NC1000 though on the bottom right we see a notebook stand with a clean surface and on the bottom left sits the same stand but with what appears to be a fan in the middle.

Update:  Today we received word that the mystery stand/cooler is the upcoming Zalman NS1000.  It is a prototype of the stand (one including a fan) that will likely be released sometime through out the summer.