The new ones are better. We screwed up by asking for a blue background.... kill that please.
Not fond of font in 4 and 5.
In # 6, it would be good to have symmetry with the abstract marks, like dots on both sides. My biz partner is very fond of the dots for some reason, whereas I like the arrows but would prefer for them to be thicker.
You can use white for the logo, not gray though. I really like something similar to skype's logo because of the color choice and one color behind the other.