#1 - That was fast! Not bad. We'll have more comments when we have others to compare to. We should have mentioned that we're not settled on the slogan, so although that looks good, we likely don't want the slogan in the logo. But also the slogan is "Virtualization on demand" NOT visualization.
#1 - Looking at this further we think the font is too thin. And not necessarily in love with the shadow (but that could be because the font is too thin).
We like want you did with the icon in #7 but we also like how #1 looks like a single word. #7 and #6 have too much of a difference between Vaas and Net which we are trying to avoid.
#6 - We are getting more and more attracted to the icon but also is it possible to get it too look more 3-Dimensional? So that it looks like the green line is moving into the box??
#1 - We still like this logo but we also know we want to apply some of the other comments to it. Can you modify this logo and update it with a thicker font and also an icon that matches the current look and feel that you have in #1?