Thanks for all your great designs. Everyone likes the dot patterns but they have been used quite a lot in other logos people have seen on the web or elsewhere. I like your font and color options and the way you incorporate the design into the name.
Just an FYI - on entry #10, the "O" looks different at different sizes, concentric circles when large and echoing waves in 4 directions when small. Although interesting and I kind of like that, it is probably not the best business choice.