I think the pocket protector speaks more to 'nerd' than 'geek'. I get the idea you are going for. I am not too keen on inverse lettering... it makes it difficult for branding. But the logo is nice. I like how clean it is.
I like the letters on #86, but I like the guy without the glasses on #83. And while I like the outline on the lettering, it could be a little bit thinner.