Hi MSC,
I just joined the forum to thank you for your great software. It's working quite well on my Ubuntu 14.04 with the K70 LUX RGB Keyboard.
However, like anodynos mentioned, I had to click on clone download and use the newdev branch to get it to work. I initially installed the zip file from the direct download, but it would not recognize the keyboard.
Great work, Corsair should really endorse this software officially.
Thanks again!