I like the concept. "The power behind geeks" would make a clever slogan. I also like the font. Is it open source? Also, I would like to see some variations; something in place of the glasses that still speaks to "geekness". Thanks for the great submission.
I love the new concept! I never would have thought of a propeller head. I like the darker colors on the smaller hat better than the "shaded" colors on the larger hat. Also the shadows look off. I see light over dark on the power button too, but the hat is sitting up there without a shadow. Do you see what I am saying?
Also, what if we moved the power button to be the U in cubicle? Another idea, what if we lost the power button and used the two e's on geek as eyes and put the propeller hat over it?